Pedro works as a newspaper deliverer. He receives a base pay plus an additional amount per newspaper delivered. Last week, Pedro delivered 5 newspapers and earned $37.50. This week, he delivered 20 newspapers and earned $75. Let x equal the number of newspapers Pedro delivers and y be the earnings he receives in dollars. Which linear function models the scenario?

g(x) = 0.4x + 35.5
g(x) = 0.4x + 67
g(x) = 2.5x + 25
g(x) = 2.5x + 50

Question

Pedro works as a newspaper deliverer. He receives a base pay plus an additional amount per newspaper delivered. Last week, Pedro delivered 5 newspapers and earned $37.50. This week, he delivered 20 newspapers and earned $75. Let x equal the number of newspapers Pedro delivers and y be the earnings he receives in dollars. Which linear function models the scenario?

g(x) = 0.4x + 35.5
g(x) = 0.4x + 67
g(x) = 2.5x + 25
g(x) = 2.5x + 50

lowkey · Answer

What do you think?

dude · Answer

Since you're gone,

The question gave us 2 sets of values:
5 newspapers which earned $37.50
and
20 newspapers earned him $75

x is the newspaper count while y is the $ earned, you can use both points to find the rate
(5,27.50) and (20,75)

Use the equation $m=\frac{y_2-y_1}{x_2-x_1}$ to find the rate and then substitute it back into the general equation $y=mx+b$