Question

Given the following functions f(x) and g(x), solve f(x) = 2x - 20, g(x) = x - 1 for x = -5.

A) 15
B) -5
C) -25
D) 5

Answer 1

To solve the given equations, substitute x = -5 into f(x) and g(x). The solutions for f(x) = 2x - 20 and g(x) = x - 1 when x = -5 are f(-5) = -30 and g(-5) = -6. Therefore, the answer is C) -25.

Step-by-step explanation:

To solve the equations f(x) = 2x - 20 and g(x) = x - 1 for x = -5, we substitute x = -5 into each equation:

f(x) = 2x - 20

f(-5) = 2(-5) - 20

f(-5) = -10 - 20

f(-5) = -30

g(x) = x - 1

g(-5) = -5 - 1

g(-5) = -6

Therefore, the solutions for f(x) = 2x - 20 and g(x) = x - 1 when x = -5 are f(-5) = -30 and g(-5) = -6. So the answer is C) -25.