The sale price of apples at a local grocery store is $1.35 for the first pound and $1.10 for each additional pound. Which function rule shows how the cost of apples, y, depends on the number of pounds, x?

a. y=1.10(x-1)+1.35
b. y=1.10x+1.35
c. y=1.35x+1.10
d. y=(1.10+1.35)x

Question

The sale price of apples at a local grocery store is $1.35 for the first pound and $1.10 for each additional pound. Which function rule shows how the cost of apples, y, depends on the number of pounds, x?

a. y=1.10(x-1)+1.35
b. y=1.10x+1.35
c. y=1.35x+1.10
d. y=(1.10+1.35)x

xguardians · Answer

1.1 is the rate.
y = 1.10(x-1)[since the discount applies after the first]
1.35 is the standard cost regardless for 1
y = 1.10(x-1) + 1.35

A!