Write the equation of the given line in standard form.
Coordinates are (1/2, 3) and (-4,-1)
A. -8x + 9y = 23
B. -8x + 9y = -23
C. -8x + 7y = 25
D. -9x + 8y = -23

The answer is A

Question

Write the equation of the given line in standard form. 
Coordinates are (1/2, 3) and (-4,-1)
A. -8x + 9y = 23
B. -8x + 9y = -23
C. -8x + 7y = 25
D. -9x + 8y = -23

The answer is A

anonymous · Answer

If you want to simply solve this problem, just plug in 1 of the x and y cord pairs into the equations until you find one that works

anonymous · Answer

If you want to do it the hard way...
1st you have to rewrite all the equations so that y is by itself on 1 side (y=mx+b)
Of course...that's way too much work on an exam

anonymous · Answer

i got C... am i right?

anonymous · Answer

B.. sorry hehe

anonymous · Answer

uhh...lemmme check, haven't done it yet :P

anonymous · Answer

oh okay haha sorry, no rush

anonymous · Answer

It's actually A
-8 x -4 + 9 x -1 = 23
32 - 9 = 23