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.
A. 100 = 0.20 × k
B. p = 0.20 × 100 × k
C. p = 0.20k + 100
D. 0.20k = 100 + p
C. p = 0.20k + 100
Do the values in the table represent a linear function? If so, what is the function rule?
A title has 2 rows.
The first row is titled x and contains the numbers negative 2, 0, 2, and 4.
The second row is titled y and contains the numbers negative 4, 0, 4, and 8.
A. The values do not show a linear function.
B. Yes, they show a linear function; y = one-halfx + 4.
C. Yes, they show a linear function; y = 2x + 2.
D. Yes, they show a linear function; y = 2x.
B. Yes, they show a linear function; y = one-halfx + 4.
Write an equation for the line shown in the graph.
linear functions graph
A. 10 = 4x
B. y = 2x + 10
C. y = 10x – 2
D. y = –x + 10
B. y = 2x + 10
Write a function rule for the total cost.
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.
A. y = 1.25x + 3; $5.00
B. y = 3x + 1.25; $13.25
C. y = 1.25x + 3; $8.00
D. y = 5x + 3; $8.00