Question

Given f(x)=7(9−x)−4, what is the value of f(−1) ? Enter the answer in the box.

Answer 1

Solution:

f(x) = 7(9 - x) - 4

f(-1) = 7(9 - (-1)) - 4

f(-1) = 7(10) - 4

f(-1) = 70 - 4

f(-1) = 66

Best of Luck~

Answer 2

Given Function:

F(x) = 7(9-x)-4

Value:

x = -1

To Find:

f(-1)

Solution:

f(-1) = 7(9-(-1))-4

f(-1) = 7(9+1)-4

f(-1) = 7(10)-4

f(-1) = 70 - 4

f(-1) = 66

Answer:

f(-1) = 66