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Mathematics 9 Online
OpenStudy (anonymous):

Let f(x) = x2 - 3x - 7. Find f(-3).

OpenStudy (anonymous):

11 8 -7 -10

OpenStudy (anonymous):

It's a function f(x) and -3 is the argument. That means plug -3 in everywhere you see x on the right hand side. Be careful about order of operations...I always like to plug in (-3) in parentheses just to be sure I'm doing exponents correctly.

OpenStudy (anonymous):

@ig0p0g0 is 8 then

OpenStudy (anonymous):

@stupidinmath @amandasoto144 help plz

OpenStudy (anonymous):

Hm...what's (-3)^2 - 3(-3) - 7? Work each term first.

OpenStudy (anonymous):

ig0p0g0's right:)

OpenStudy (anonymous):

so is it 11 @stupidinmath

OpenStudy (anonymous):

Yep :)

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