Find each function, evaluate for f(0), f (3/2), f(-1)

Function Rule: f(x) = -2x - 10

Use the function rule f(x) = 5x to evaluate the given inputs and complete each output. Note:f(x) means that we are using function notation to say that x is the input and that the output is a function of x. That is what the f(x) means.

• Output = 10, 15, 20, 25

• Output = 5, 10, 15, 20

• Output = 4, 8, 12, 16

• Output = 2, 4, 6, 8

Marsha buys x pens at $0.70 per pen and one pencil for $0.10. Which function gives the total amount Marsha spends?

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Belle is buying pizzas for her daughter’s birthday party, using the prices in the table. Which equation best describes the relationship between the total cost c and the number of pizzas p?

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Use the image to try and write a function rule using the following word problem.