Question

Select the correct answer.
Eric has challenged himself to walk 24,000 steps in 4 days. If Eric walks the same number of steps each day, which function represents the number of steps Eric still needs to walk to reach his goal with respect to the number of days since he started his challenge?
A.
y = 8,000x − 24,000
B.
y = -8,000x + 24,000
C.
y = 6,000x − 24,000
D.
y = -6,000x + 24,000

Answer 1

D. y = -6,000x + 24,000

Reason: He walks 24,000/4 = 6,000 steps per day, so after x days he has walked 6,000x steps and still needs 24,000 − 6,000x steps.