lizgirl0805 lizgirl0805
  • 22-09-2021
  • Mathematics
contestada

If f(x) = 2x - 4 and g(x)= -5x + 6, then what is f(g(x))?

If fx 2x 4 and gx 5x 6 then what is fgx class=

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themathexpertise
themathexpertise themathexpertise
  • 22-09-2021

Answer:

B. f(g(x)) = -10x + 8

Step-by-step explanation:

When evaluating f(g(x)), substitute what g(x) is in place of g(x).

So instead of

f(g(x))

the function would be:

f(-5x + 6).

Now all you have to do is evaluate this.

To evaluate this function, substitute the value inside the f(x) for all instances of x in the equation.

f(x) = 2x - 4

f(-5x + 6) = 2(-5x + 6) - 4

f(-5x + 6) = -10x + 12 - 4

f(-5x + 6) = -10x + 8

Therefore, f(g(x)) = -10x + 8.

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