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3 years ago

5

Find the slope of the line that contains these points (-2,5) (-4,11)

2 answers:

adell [148]3 years ago

4 0

Here is the formula and solution.

nevsk [136]3 years ago

3 0

The first thing you have to do is:

subtract: 11-5

Then subtract: -4-(-2)

then you put it as a fraction: 6/-2 or -3

That -3 would be considered the slope.

So now you have: y=-3x+ b

So what you have to do is plug in one of the points into the equation to find out what b is.

For example: 11 = -3(-4) + b
11=12 + b
-12 -12
b = -1
So the answer is: y = -3x -1

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Answer:

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Part B) $x=2.5$ and $x=-0.5$

Part C) $x=-1$ and $x=3$

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Step-by-step explanation:

Part A) we have

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The <u><em>square root property</em></u> states that if we have an equation with a perfect square on one side and a number on the other side, then we can take the square root of both sides and add a plus or minus sign to the side with the number and solve the equation.

isolate the term that contains the squared variable

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take square root both sides

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