SOLUTION: If the slop of a line is 4/5 and the y-intercept is 3, what is the linear equation in the slop-intercept form?

Question 120829: If the slop of a line is 4/5 and the y-intercept is 3, what is the linear equation in the slop-intercept form?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If the y-intercept is 3, then the line goes through the point (0,3)

If you want to find the equation of line with a given a slope of which goes through the point (,), you can simply use the point-slope formula to find the equation:

---Point-Slope Formula---
where is the slope, and

is the given point

So lets use the Point-Slope Formula to find the equation of the line

Plug in , , and (these values are given)

Distribute

Multiply and to get

Add 3 to both sides to isolate y

Combine like terms and to get
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Answer:

So the equation of the line with a slope of which goes through the point (,) is:

which is now in form where the slope is and the y-intercept is

Notice if we graph the equation and plot the point (,), we get (note: if you need help with graphing, check out this solver )

Graph of through the point (,)
and we can see that the point lies on the line. Since we know the equation has a slope of and goes through the point (,), this verifies our answer.
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