Question

If (x, -3) is on the line described by f(x)=-x+8, what is the value of x

Answer 1

The value of x that the given point of the function is 11.

Linear Function

An equation can be represented by a linear function. The standard form for the linear equation is: y= ax+b , for example, y=5x+3. Where:

a= the slope

b= the constant term that represents the y-intercept.

For the previous example: a=5 and b=3.

The question gives a point (x , -3) of a function f(x)= -x+8. Therefore, you can write

-3=-x+8

x=8+3

x=11

Thus, the x-coordinate is equal to 11.

Read more about the linear equations here:

brainly.com/question/2030026

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