1. Write a function rule for finding the amount of daily pay, p, in the following situation: A bus driver
 gets paid $100 each day plus $0.20 per kilometer, k. (1 point)
 100 = 0.20 × k
 p = 0.20 × 100 × k
 p = 0.20k + 100
 0.20k = 100 + p
 Use the table below to answer the following question.
 2. Do the values in the table represent a linear function? If so, what is the function rule?
 (1 point)
 The values do not show a linear function.
 Yes, the values show a linear function: y = x + 4.
 Yes, the values show a linear function: y = 2x + 2.
 Yes, the values show a linear function: y = 2x.
 Use the following graph to answer the question.
 3. Write an equation for the line shown in the graph.
 (1 point)2/20/2015 Writing Rules for Linear Functions
 https://www.connexus.com/content/render.aspx?disableAssessment=true&printpreview=true&printpopup=true&idSection=504591&idCourse=31343&idWebus… 2/2
 10 = 4x
 y = 2x + 10
 y = 10x – 2
 y = –x + 10
 Write a function rule for the total cost.
 4. One frozen yogurt store sells frozen yogurt for $3.00 per cup and $1.25 per topping. Write a linear
 equation to show the total cost of a cup of frozen yogurt. Then calculate the total price for one cup of
 frozen yogurt with 4 toppings. (1 point)
 y = 1.25x + 3; $5.00
 y = 3x + 1.25; $13.25
 y = 1.25x + 3; $8.00
 y = 5x + 3; $8.00