Question 92559: Find an equation in standard form of the line described.
has x-intercept 4 and y-intercept -8
Ch.3
Answer by chitra(359)  (Show Source):
You can put this solution on YOUR website! The given data is:
x-intercept 4 and y-intercept -8
This can be written as:
x - intercept is - (4, 0)
y - intercept is - (0, -8)
The general equation of the line in the slope -intercept form is given by: y = mx + b
So substituing these points in the given equationwe get:
(4,0) ==> 0 = 4m + c
==> c = -4m
(0, -8) ==> -8 = 0 + c
==> c = -8
substituing this in the above equation, we get
-8 = -4m
==> 8 = 4m
==> m = 2
so substituing this in the eqn of the st line, we get:
y = mx + b
y = 2x - 8
Hence, the solution.
|
|
|
