posted by .

Plugging in a value of x lets you compute y, or vice versa. It is the equation of a striaght line.

What are you supposed to do with the equation? Turn it into an equation for y?

try isolating for y

(0,2) m= 4/5

iol

7x-15y+9=0
**Subtract 9 from both sides
7x-15y=-9
**Subtract 7x from both sides
-15y=-7x-9
**Divide both sides by -15
y=(7/15)x+(9/15) <--- equation isolate for y

2+11b=8b+15

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