Given f(x) = x 10. What is f(7)

i think its -10

3 answers

what does x 10 mean?
did you mean 10x or x^10 or ....

I can't see where you get f(7) = -10
What is the solution to the linear system of equations?
x + 4y = 8
x y = 7

(4, 3)

(4, 3)

(7, 0)

The system has no solution.
Please don't attach a new question to the replies of a new question, post it as a new question.

While you are replying to my first concern, here is your second problem:

you claim that you have a linear system of equations, but
xy = 7 is not linear, it would be a curve.
Check your typing