6. Determine the standard form of the equation of the line that passes through (9, -4) and (6, 4).
a) 3x + 8y = 60
b) 8x + 3y = -60
c) 8x - 3y = 60
d) 8x + 3y = 60
This is what I did:
4 - (-4)/ 6 - 9 = 8/-3
-4 = (8/-3)(9) + b
b = 20
And then I plugged everything into the slope intercept equation and simplified to get the standard form. This is what I got:
-8x - 3y = -60
My question: I can multiply by -1 to make everything positive, right? So the answer would be D?
I forgot... Haha, sorry, first week of school is kicking my butt.
If I'm wrong, please say why so I can understand in the future. Thanks!
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