|
Question 494843: Find the x- and y- intercepts and graph the equation plotting the intercepts. Show all work please
3x- 6y = -21
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! To find the y-intercept, set x = 0 and solve for y:
3x- 6y = -21
3(0)- 6y = -21
-6y = -21
y = (-21)/(-6)
y = 7/2
so, y-intercept is at (0, 7/2)
.
To find the x-intercept, set y = 0 and solve for x:
3x- 6y = -21
3x- 6(0) = -21
3x- 0 = -21
3x = -21
x = (-21)/3
x = -7
so, x-intercept is at (-7, 0)
.
To graph, plot both points and draw a line through both points.
|
|
|
| |
