Question

Given f(x)= 10-2x, find f(7).
*-4
*3
*7
*56

Answer 1

`\displaystyle -4 = f(7)`

Explanation:

`\displaystyle 10 - 2[7] = -14 + 10 = -4`

I am joyous to assist you anytime.

Answer 2

f(7) means that the x value is 7, so all you have to do is substitute 7 into the equation.

f(7)=10-2(7)
or more simply,
y=10-2(7)
y=10-14
y=-4

So the answer would be -4