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13. The graph of a quadratic function is a smoother curve called b) parabola a) straight line c) hyperbola d) bar graph 11 10

13. The graph of a quadratic function is a smoother curve called b) parabola a) straight line c) hyperbola d) bar graph 11 10

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.3: Hyperbolas
Problem 44E
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13. The graph of a quadratic function is a smoother curve called a) straight line b) parabola c) hyperbola d) bar graph 14. If y varies inversely as x and 1 when x=9, find y when x = -3. 5 y = a) 5 b)= c): d) - 3 15. If 3 men can do a portion of job in 8 days, how many men can do the same job in 6 days? а) 7 b) 6 c) 5 d) 4 16. The zeros of quadratic function y = x2 - 3x - 40 are a) 5 and -8 b) -5 and 8 c) 5 and 8 d) -5 and -8 17. What is the vertex of a quadratic function y = x2 – 3x – 10? | a) (-) 49 3 b) () 49 o) (-,-) d) (;,-) 49 49 4 4 4 18. Find the quadratic function from the table of values below. -5 -4 -3 -2 -1 1 -6 -1 2 3 -1 -6 a) y = 2x2 + 4x – 1 b) y = -x2 + 4x – 1 c) y = -x2 – 4x – 1 d) у %3D — 2х2 — 4х — 1 19. What happen to T when h is doubled in the equation T= 4h? b) T is halved a) T is doubled c) T is tripled d) T becomes zero 20. The number of days needed in repairing a house varies inversely as the number of men working. It takes 15 days for 2 men to repair the house. How many men are needed to complete the job in 6 days? a) 5 men b) 6 men c) 15 men d) 20 men
Transcribed Image Text:13. The graph of a quadratic function is a smoother curve called a) straight line b) parabola c) hyperbola d) bar graph 14. If y varies inversely as x and 1 when x=9, find y when x = -3. 5 y = a) 5 b)= c): d) - 3 15. If 3 men can do a portion of job in 8 days, how many men can do the same job in 6 days? а) 7 b) 6 c) 5 d) 4 16. The zeros of quadratic function y = x2 - 3x - 40 are a) 5 and -8 b) -5 and 8 c) 5 and 8 d) -5 and -8 17. What is the vertex of a quadratic function y = x2 – 3x – 10? | a) (-) 49 3 b) () 49 o) (-,-) d) (;,-) 49 49 4 4 4 18. Find the quadratic function from the table of values below. -5 -4 -3 -2 -1 1 -6 -1 2 3 -1 -6 a) y = 2x2 + 4x – 1 b) y = -x2 + 4x – 1 c) y = -x2 – 4x – 1 d) у %3D — 2х2 — 4х — 1 19. What happen to T when h is doubled in the equation T= 4h? b) T is halved a) T is doubled c) T is tripled d) T becomes zero 20. The number of days needed in repairing a house varies inversely as the number of men working. It takes 15 days for 2 men to repair the house. How many men are needed to complete the job in 6 days? a) 5 men b) 6 men c) 15 men d) 20 men
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