Question

Yesterday, Esperanza worked for 6 hours and earned $120. Today, Esperanza worked 8 hours and earned $156. Write the equation of the linear function that models the relationship between the number of hours Esperanza works and the amount of money she earns. Enter your answer in y=mx+b
form.

Answer 1

y = 18x + 12

(Using slope m = (156−120)/(8−6) = 18 and solving 120 = 18·6 + b gives b = 12.)