SOLUTION: Find the equation of the line using the point-slope formula. Write the final equation using the slope-intercept form. the x-intercept is 1, and (x, y) = (−2, 15) is a

Algebra ->  Graphs -> SOLUTION: Find the equation of the line using the point-slope formula. Write the final equation using the slope-intercept form. the x-intercept is 1, and (x, y) = (−2, 15) is a      Log On


   

Question 1016025: Find the equation of the line using the point-slope formula. Write the final equation using the slope-intercept form.
the x-intercept is 1, and
(x, y) = (−2, 15)
is a point on the line
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find the equation of the line using the point-slope formula.
Write the final equation using the slope-intercept form.
the x-intercept is 1,
and
(x, y) = (−2, 15) is a point on the line
:
"x intercept is 1" means y = 0
Assign the values as follows
x1=1; y1=0
x2=-2; y2=15
Find the slope using: m = %28%28y2-y1%29%29%2F%28%28x2-x1%29%29
%28%2815-0%29%29%2F%28%28-2-1%29%29 15%2F-3 = -5 is the slope (m)
:
Using the point slope form y - y1 = m(x - x1)
y - 0 = -5(x - 1)
y = -5x + 5, is the slope intercept form
:
:
you can confirm this for yourself. Substitute 1, see if y = 0;
do the same for x=-2; see if y = 15