Answer:
136 miles
Step-by-step explanation:
34 miles in 15 min
15 min × 4 = 1 hour
so 34 miles × 4 = 136 miles
136 miles in 1 hour
f(4) = - 1
To evaluate f(4) substitute x = 4 into f(x) , that is
f(4) = 5(4 - 7) + 14 = 5(- 3) + 14 = - 15 + 14 = - 1
x = 12
y = 49