Problem 10.85TI: Graph y=x2 . Problem 10.86TI: Graph y=x2+1 . Problem 10.87TI: Determine whether each parabola opens upward or downward: (a) y=2x2+5x2 (b) y=3x24x+7 Problem 10.88TI: Determine whether each parabola opens upward or downward: (a) y=2x22x3 (b) y=5x22x1 . Problem 10.89TI: For the parabola find: (a) the axis of symmetry and (b) the vertex. Problem 10.90TI: For the parabola y=2x24x3 find: (a) the axis of symmetry and (b) the vertex. Problem 10.91TI: Find the intercepts of the parabola y=x2+2x8 . Problem 10.92TI: Find the intercepts of the parabola y=x24x12 . Problem 10.93TI: Find the intercepts of the parabola y=3x2+4x+4 . Problem 10.94TI: Find the intercepts of the parabola y=x24x5 . Problem 10.95TI: Find the intercepts of the parabola y=x212x36 . Problem 10.96TI: Find the intercepts of the parabola y=9x2+12x+4 . Problem 10.97TI: Graph the parabola y=x2+2x8 . Problem 10.98TI: Graph the parabola y=x28x+12 . Problem 10.99TI: Graph the parabola y=3x2+12x12 . Problem 10.100TI: Graph the parabola y=25x2+10x+1 . Problem 10.101TI: Graph the parabola y=2x26x+5 . Problem 10.102TI: Graph the parabola y=2x21 . Problem 10.103TI: Graph the parabola y=5x2+10x+3 . Problem 10.104TI: Graph the parabola y=3x26x+5 . Problem 10.105TI: Find the maximum or minimum value of the quadratic equation y=x28x+12 . Problem 10.106TI: Find the maximum or minimum value of the quadratic equation y=4x2+16x11 . Problem 10.107TI: The quadratic equation h=16t2+128t+32 is used to find the height of a stone thrown upward from a... Problem 10.108TI: A toy rocket shot upward from the ground at a rate of 208 ft/sec has the quadratic equation of... Problem 163E: In the following exercises, graph: 163. y=x2+3 Problem 164E: In the following exercises, graph: 164. y=x2+1 Problem 165E: In the following exercises, determine if the parabola opens up or down. 165. y=2x26x7 Problem 166E: In the following exercises, determine if the parabola opens up or down. 166. y=6x2+2x+3 Problem 167E: In the following exercises, determine if the parabola opens up or down. 167. y=4x2+x4 Problem 168E: In the following exercises, determine if the parabola opens up or down. 168. y=9x224x16 Problem 169E: In the following exercises, find (a) the axis of symmetry and (b) the vertex. 169. y=x2+8x1 Problem 170E: In the following exercises, find (a) the axis of symmetry and (b) the vertex. 170. y=x2+10x+25 Problem 171E: In the following exercises, find (a) the axis of symmetry and (b) the vertex. 171. y=x2+2x+5 Problem 172E: In the following exercises, find (a) the axis of symmetry and (b) the vertex. 172. y=2x28x3 Problem 173E: In the following exercises, find the x- and y-intercepts. 173. y=x2+7x+6 Problem 174E: In the following exercises, find the x- and y-intercepts. 174. y=x2+10x11 Problem 175E: In the following exercises, find the x- and y-intercepts. 175. y=x2+8x19 Problem 176E: In the following exercises, find the x- and y-intercepts. 176. y=x2+6x+13 Problem 177E: In the following exercises, find the x- and y-intercepts. 177. y=4x220x+25 Problem 178E: In the following exercises, find the x- and y-intercepts. 178. y=x214x49 Problem 179E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 179.... Problem 180E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 180.... Problem 181E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 181.... Problem 182E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 182.... Problem 183E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 183.... Problem 184E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 184.... Problem 185E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 185.... Problem 186E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 186.... Problem 187E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 187.... Problem 188E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 188.... Problem 189E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 189.... Problem 190E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 190.... Problem 191E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 191.... Problem 192E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 192.... Problem 193E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 193.... Problem 194E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 194.... Problem 195E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 195.... Problem 196E: In the following exercises, graph by using intercepts, the vertex, and the axis of symmetry. 196.... Problem 197E: In the following exercises, find the maximum or minimum value. 197. y=2x2+x1 Problem 198E: In the following exercises, find the maximum or minimum value. 198. y=4x2+12x5 Problem 199E: In the following exercises, find the maximum or minimum value. 199. y=x26x+15 Problem 200E: In the following exercises, find the maximum or minimum value. 200. y=x2+4x5 Problem 201E: In the following exercises, find the maximum or minimum value. 201. y=9x2+16 Problem 202E: In the following exercises, find the maximum or minimum value. 202. y=4x249 Problem 203E: In the following exercises, solve. Round answers to the nearest tenth. 203. An arrow is shot... Problem 204E: In the following exercises, solve. Round answers to the nearest tenth. 204. A stone is thrown... Problem 205E: In the following exercises, solve. Round answers to the nearest tenth. 205. A computer store owner... Problem 206E: In the following exercises, solve. Round answers to the nearest tenth. 206. A retailer who sells... Problem 207E: In the following exercises, solve. Round answers to the nearest tenth. 207. A rancher is going to... Problem 208E: In the following exercises, solve. Round answers to the nearest tenth. 208. A veterinarian is... Problem 209E: In the previous set of exercises, you worked with the quadratic equation R=x2+40x that modeled the... Problem 210E: In the previous set of exercises, you worked with the quadratic equation R=x2+100x that modeled the... Problem 211E: For the revenue model in Exercise 10.205 and Exercise 10.209, explain what the x-intercepts mean to... Problem 212E: For the revenue model in Exercise 10.206 and Exercise 10.210, explain what the x-intercepts mean to... format_list_bulleted