Vivian L. answered • 11/05/13

Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACH

Hi Ryan;

The x-intercept means that when y=0, x=4.

(As opposed to y-intercept, x=0.)

0=4m+3

Let's subtract 3 from both sides as we proceed to isolate m...

0-3=4m+3-3

-3=4m

Let's divide both sides by 4...

-3/4=(4m)/4

**-3/4=m**

Let's plug in and verify results...

y=(-3/4)x+3

0=[(-3/4)(4)]+3

0=-3+3

0=0