Use the given conditions to write an equation for the line in point-slope form and slope-intercept form.

Question

x-intercept = 15 and y-intercept = -3

 

What is a point-slope form?

 

What is the slope-intercept form?

Answer 1

We can actually solve for the slope from the given information. The 2 intercepts correlate to 2 points on the line. (15,0) and (0,-3)

 

So the slope is: 

m=(y₁-y₂)/(x₁-x₂)

m=(0-(-3))/(15-0)

m=3/15

m=1/5

Answer 2

to find the point-slop form you need this formula y – y1 = m(x – x1)

 

where m is slope. You need to have have slope given to find the solution.