Question

F(x)=-x+7 in a table.​

Answer 1

• x, f(x)
• -2,9
• -1,8
• 0,7
• 1,6
• 2,5

Explanation:

A fucntion is basically a machine that follows the instructions it's given and based on those instructions it gives you an answer. So in the function

f(x)=-x+7, our total output (answer) is going to be whatever our "x" is and adding that to 7.

So lets start with -2, plug in -2 for the x variable

f(x)=-(-2)+7, when we solve this we get f(x)=2+7 (negative*negative=positive)

so our final function would be f(x)=9

We can solve the other functions by plugging in the x variable in the same way:

f(x)=-(-1)+7 this simplifies to f(x)=1+7, so f(x) equals 8

f(x)=-(0)+7 this simplifies to f(x)=0+7, so f(x)=7

f(x)=-(1)+7 this simplifies to f(x)=-1+7, so f(x)=6

f(x)=-(2)+7 this simplifies to f(x)=-2+7, so f(x)=5