Wait, do you mean that y=10 is what you want in slope intercept form? Oh btw I'm not answering this just for the points. I'll actually answer the question
<h2>
Answer:</h2>
<u>, "six and one over two ft".</u>
<h2>
Step-by-step explanation:</h2>
Let's considerate the fact that the garden has a <u>square shape</u>.
<h3>1. Finding values of interest.</h3>
Amount of fence that the gardener already has:
ft.
Length of one side:
ft.
If one side measures
ft, and the square garden has 4 sides of equal length, because it's a square, then we must multiply the measure of one side by 4 to find the total length of fence needed:

<h3>
2. How much more does he need?</h3>
The gardener already has
, which equals
. Hence, the difference between the amount needed and the amount that the gardeneralready has will give us the remaining amount required. Let's do that:

<h3>3. Express your result.</h3>

F(x) = 5x
for f(7) you replace x with 7 so it will be : f(7) = 5(7) = 35
X= 10
I= 1
10+10+1+1+1= 23
I hope this helps!