SOLUTION: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. slope;-3/4 and y intercept is (0,8) I know that y=-3/4x+8

Algebra ->  Coordinate-system -> SOLUTION: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. slope;-3/4 and y intercept is (0,8) I know that y=-3/4x+8       Log On


   

Question 67440: Write the equation of the line with given slope and y-intercept. Then graph each line using
the slope and y-intercept.
slope;-3/4 and y intercept is (0,8)
I know that y=-3/4x+8
I need to know the rise and run.
Would the run be 4 or -4? Is the whole fraction negative or just the top?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Well, you have the correct equation in the slope-intercept form:
y+=+%28-3%2F4%29x%2B8
The slope is -3%2F4 and, of course, slope is rise over run, so the rise is 3 and the run is 4.
The question of which part of the slope is negative is really irrelevant. The entire slope is negative which means that the line leans to the left.
One way to look at it is in drawing the line so that is has the correct slope, you would go up (rise) 3 units on the graph and then go left (run) -4 units. Why left and not right? Well, because the slope is negative (left-leaning) and not positive (right-leaning).