sandydaisy
sandydaisy
13-07-2017
Mathematics
contestada
if f(x)=2x+5 and g(x)=x^2-3x what is g(-3)
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jimthompson5910
jimthompson5910
13-07-2017
Plug x = -3 into g(x). Then use the order of operations (PEMDAS) to evaluate.
g(x) = x^2 - 3x
g(x) = (x)^2 - 3*(x)
g(-3) = (-3)^2 - 3*(-3) ... every x is replaced with -3
g(-3) = 9 - 3*(-3)
g(-3) = 9 + 9
g(-3) = 18
Answer: 18
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