Question

5). how do i fine the slope and y-intercept of the following?
y=0, x=3
x=-1, y=0
Write the equation of the line in slope-intercept form.

Answer 1

No y intercept. Slope is not defined

Answer 2

y1 = 0 , y2 = 0 x1 = 3 and x2 =-1
(y2-y1) / (x2 - x1)
= (0-0 ) / ( -1 -3 )
0 / -4 !

not defined !!

Answer 3

Is it y =0 x = 3 and y =-1, x =0
that way there will be a gradient and y intercept

Answer 4

Then the gradient is 3 and the y intercept is (0,3)
That makes the equation
y = 3x + 3