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DanielleElmas [232]
3 years ago
8

What is the equation of a line that has a slope of -2 and goes through the point (-9,1)

Mathematics
1 answer:
stiks02 [169]3 years ago
8 0
Y = -2x + b
Plug in point
1 = -2(-9) + b
1 = 18 + b, b = -17
Solution: y = -2x - 17
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10x^2+15x-9=2x^2+x-14
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Answer: x= -5/4, -1/2

Step-by-step explanation:

10x^2+15x-9=2x^2+x-14

- Move all terms to one side.

10x^2+15x−9−2x^{2}−x+14=0

- Simplify 10x^2+15x−9−2x^{2}−x+14 to 8x^2+14x+5.

8x^2+14x+5.

- Split the second term in 8x^2+14x+5 into two terms.

8x^{2}+10x+4x+5=0

- Factor out common terms in the first two terms, then in the last two terms.

2x(4x+5)+(4x+5)=0

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