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OpenStudy (anonymous):
ok this is another one I have no clue how to do .....well I think I just dont know what format to use If f(x) = 2x2 - 30, find f(4).
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Vocaloid (vocaloid):
f(4) just means plug in 4 for x and solve for f(x)
OpenStudy (anonymous):
Im sorry but I am already confused .... does that mean that I just multiply 4?
Vocaloid (vocaloid):
f(x) = 2x^2 - 30, right? just substitute 4 for x into the equation
Vocaloid (vocaloid):
replace "x" with 4 and solve
OpenStudy (anonymous):
ok so this is the equation I should be solving f(4)=2(4)squared -30?
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Vocaloid (vocaloid):
yup! you got it!
OpenStudy (anonymous):
I got 2 and that is one of my options is that right?
Vocaloid (vocaloid):
yup, good job
OpenStudy (anonymous):
Thank you sooo much
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