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OpenStudy (anonymous):
Can someone please help me? Let f(x) = -2x - 7 and g(x) = -4x + 3. Find (f o g)(-5) A. -53 B. 3 C. -9 D. 23
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OpenStudy (anonymous):
f o g(x) = f(g(x))
OpenStudy (anonymous):
that is f(-4x+3)
OpenStudy (anonymous):
that is -2(-4x+3) - 7 that is = 8x-6-7 that is = 8x-13
OpenStudy (anonymous):
at x= -5, it becomes 8(-5)-13 that = -40-13 = -53
OpenStudy (anonymous):
answer is A
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OpenStudy (anonymous):
Thank You!
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