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for the given function f(x)=4x^2-2 and g(x)= 3-1/2x find: a) (f • g)(4) b) (g • f)(2)?

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for the given function f(x)=4x^2-2 and g(x)= 3-1/2x find: a) (f • g)(4) b) (g • f)(2)?

composite-functions

asked Feb 10, 2015 in PRECALCULUS by anonymous

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1 Answer

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Step 1:

The functions are

.

.

(a) Find .

.

Substitute in .

Substitute in .

.

Step 2:

(b) Find .

.

Substitute in .

Substitute in .

.

Solution:

(a) .

(b) .

answered Feb 10, 2015 by Sammi Mentor

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