Question

Find f(-3) if f(x) = x 2.

Answer 1

is it x 2 or x*2?

Answer 2

x is squared

Answer 3

is it -3 multiplied by x squared?

Answer 4

It is asking you to evaluate x^2 (that's how we symbolize x squared sometimes) for the value of x=-3 so what is the square of -3 or the product of -3 x -3?

Answer 5

-9

Answer 6

What happens when you multiply a negative number by a negative number?

Answer 7

i get it :) Thank you

Answer 8

Sure, but make sure you know that it is 9 and not -9 because the sign changes when you multiply two negative numbers.

Answer 9

Yes i get that - makes sense! Thanks

Answer 10

@rebeccaxhawaii it should be (-3)^2, and not -3^2.

Yes, the answer is 9.

Answer 11

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Answer 12

If you were to replace -3 with x it would give you -9