Deijaa
Deijaa
16-10-2017
Mathematics
contestada
If f(x) = 3x2 - x, find f(-2).
10
14
38
Respuesta :
musiclover10045
musiclover10045
16-10-2017
f(x) = 3x^2-x
F(-2)
replace x with -2
3(-2)^2 - -2 =
3*4 +2 = 14
Answer is 14
Answer Link
Аноним
Аноним
16-10-2017
'Ello.
Just plug in the values.
f(-2) = 3(-2)^2 - (-2) {Equation}
f(-2) = 3(4) - (-2) {Multiply}
f(-2) = 12 - (-2) {The signs become a positive; add}
f(-2) = 14 {Answer}
You're welcome.
Answer Link
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