SOLUTION: Find the slope and y-intercept for the graph of -2x-3y=18 A. m=-3/2;(0,-18) B. m=2/3;(0,6) C. m=-2/3;(0,-6) D. m=3/2;(0,18)

Algebra ->  Linear-equations -> SOLUTION: Find the slope and y-intercept for the graph of -2x-3y=18 A. m=-3/2;(0,-18) B. m=2/3;(0,6) C. m=-2/3;(0,-6) D. m=3/2;(0,18)      Log On


   



Question 169780: Find the slope and y-intercept for the graph of -2x-3y=18
A. m=-3/2;(0,-18)
B. m=2/3;(0,6)
C. m=-2/3;(0,-6)
D. m=3/2;(0,18)

Found 2 solutions by Alan3354, jojo14344:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find the slope and y-intercept for the graph of -2x-3y=18
A. m=-3/2;(0,-18)
B. m=2/3;(0,6)
C. m=-2/3;(0,-6)
D. m=3/2;(0,18)
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The slope is 2/3, only B has that, so it has to be B.
The others are eliminated, so it's not necessary to solve for the y-intercept.

Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
Sorry, recalculate on the given
Given Line eqn: -2x-3y=18+
Via Slope Intercept form: y=mx%2Bb, where m=slope & b=Yintercept
Continuing,
-3y=2x%2B18
cross%28-3%29y%2Fcross%28-3%29=%282x%2B18%29%2F-3
y=%28-2%2F3%29x-%2818%2F3%29
Answer: slope=-2%2F3 & b=-18%2F3=-6, Answer (C)
then it follows ---> Via Slope form:
See graph for verification:
----> shown y-intercept -18%2F3=-6
.
Thank you,
Jojo