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AleksAgata [21]
3 years ago
7

If my slope is -2/3 and my y intercept is -1 what’s my equation?

Mathematics
1 answer:
finlep [7]3 years ago
8 0

Answer:

y = mx + b

therefore, the equation is y = -2/3x - 1

the -2/3 got the x because it is the slope and if you look at the formula, it tells you.

y-intercept is the starting point (b)

Step-by-step explanation:

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6 0
3 years ago
Need help please anyone?
poizon [28]

Ok so for part a we're going to use substitution, since both equations have y alone.

Step 1: Use substitution

y = x - 1    y = -x + 3

x - 1 = -x + 3

If you think about it, this makes sense. You're looking for the point where they intersect, and you know that the y coordinate for that point will be the same in both equations. Therefore, we can set the rest of the equations equal to each other. Now we just need to simplify.

Step 2: add x to each side

x - 1 + x = -x + 3 + x

The x's on the right cancel out so we get:

2x - 1 = 3

Step 4: Add 1 to each side

2x - 1 + 1 = 3 + 1

2x = 4

Step 5: Divide both sides by 2

2x/2 = 4/2

x = 2

Step 6: Plug this x value back into one of the original equations to find the y coordinate

y = x - 1

y = 2 - 1

y = 1

Therefore your answer to part a is (2,1)


I've graphed the solution and attached it. It shouldn't be too hard to replicate - just draw both lines and they should intersect at (2,1)


Hope that helps! If you need clarification or anything please feel free to ask :)

4 0
3 years ago
In a loaf of bread, does the number of slices eaten and the number of slices remaining in the loaf have a positive, a negative,
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I think it would have a negative correlation because the amount of slices eaten is increasing while the amount remaining is decreasing.

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Phytoremediation is the use of plant growth to purify pollutants from soil, water, or air. Suppose that a crop of brake ferns ca
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Answer

He'll need to buy 24 cups of fruit juice.

Step-by-step explanation:

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5 0
3 years ago
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