What are the point on the graph of f if we know that f(2)=-4 and f(5)=3.4.

Answer 1

I'm not sure you typed your problem entirely correctly, but f(2) = -4 means that when x = 2, y = -4.

For example...

f(x) = 2x - 7

f(2) = 2(2) - 7 = 4 - 7 = -3

So, one point on the graph of f(x) = 2x - 7 is (2,-3).

f(7) = 2(7) - 7 = 14 - 7 = 7, so another point is (7,7).

Hope this helps!