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coldgirl [10]
3 years ago
15

What is the slope and y-intercept for -3y + 21x = 15? Ek help...

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0
First, you want to get it looking like y = mx + b, the original formula.
In y = mx + b, m = slope and b = y-intercept.

-3y + 21x = 15
(isolate the y, move the x to the right)
-3y = -21x +15
(isolate the y, divide by -3)
y = 7x - 5

Therefore, the slope is 7 and the y-intercept is -5.
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