Turn f(x) into y so the equation is y=x+2. Now switch their places so it is x=y+2. Now solve for y. The answer is y=x-2.
The relationship between y and x is y = 5x + 15.
<h3>
Linear equation</h3>
A linear equation is in the form:
y = mx + b
where y, x are the variables, m is the rate of change (slope) and b is the initial value of y (y intercept).
From the table, using point (5, 40) and (25, 140):

The relationship between y and x is y = 5x + 15.
Find out more on Linear equation at: brainly.com/question/14323743
Answer:
<em>x </em><em>=</em><em> </em><em>6</em><em>2</em><em>3</em>
Step-by-step explanation:
<em>-</em><em>3</em><em>7</em><em>7</em><em> </em><em>=</em><em> </em><em>x </em><em>-</em><em> </em><em>1000</em>
<em>x </em><em>=</em><em> </em><em>1000</em><em> </em><em>-</em><em> </em><em>3</em><em>7</em><em>7</em>
<em>x </em><em>=</em><em> </em><em>6</em><em>2</em><em>3</em>
<em>.</em>
<em>.</em>
<em>Hope </em><em>it </em><em>helps</em>