Slope practice performance task. Following table represents the cost as a function of the amount of gas. A. Find the rate of change. (show your work) B. What does the slope of the graph for the given situation represent? C. Using the slope form part A find the missing coordinate of the point (18,y) which lies on the same line. (show your work) Amount of Gas (Gallons) Cost (dollars) 5 17.5 8 28 12 42
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Slope practice performance task.
Following table represents the cost as a function of the amount of gas.
A. Find the rate of change. (show your work)
B. What does the slope of the graph for the given situation represent?
C. Using the slope form part A find the missing coordinate of the point (18,y) which lies on the same line. (show your work)
| Amount of Gas (Gallons) | Cost (dollars) |
| 5 | 17.5 |
| 8 | 28 |
| 12 | 42 |
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