evaluating function step by step answer
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evaluating function step by step answer
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Step-by-step explanation:
h(x) = 3x² + ax - 1
h(3) = 8
First, evaluate ; h(3) = 3x(3)² + ax 3 - 1
Simplify ; h(3) = 27 + 3a - 1
h(3) = 26 + 3a
yung h(3) = 8, so ; 8=26+3a
Substitue si 8 sa katabi ni 3a so magiging negative sign ; 26 + 3a = 8
then para maalis si 26 isusubtract both side except kay 3a
26 - 26 = 0
26 - 8 = 18
; 3a = -18
then the last step is we need to divide 3 both side para maiwan si a
3a ÷ 3 = a
-18 ÷ 3 = -6
a=-6