Ok so f(x) and g(x) are the same thing as y. this means that you can solve these equations the same as any other multi-step equation. the only difference is if they have a number other than x in the parentheses. if they have a number you will just replace the x’s in the equation with the number in the parentheses.

example:

regular equation equation with f(4)
f(x)=2x+1 f(4)=2(4)+1

make sure to use pemdas :)

4 0

3 years ago

What is the midpoint of (2,5) and (-4,10)

Aleonysh [2.5K]

Answer:

$=\left(-1,\:\frac{15}{2}\right)$

Step-by-step explanation:

$\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)\\\left(x_1,\:y_1\right)=\left(2,\:5\right),\:\left(x_2,\:y_2\right)=\left(-4,\:10\right)\\=\left(\frac{-4+2}{2},\:\frac{10+5}{2}\right)$