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topjm [15]
3 years ago
12

write the equation of the line that is parallel to y = 4x -7 and passes through the point (-2, -5). show your work.​

Mathematics
1 answer:
natita [175]3 years ago
7 0

Answer:

y = 4x + 3

Step-by-step explanation:

To do this, put the new line into the form y = mx + b where m is the slope and b is the y-intercept.

When two lines are parallel, they have the same slope. Since, the slope of the first line is 4, that means the slope of the second line is also 4.

So far, the equation is y = 4x + b.

Then, since you know (-2, -5) is a solution, x = -2, y = -5 is a solution so you can plug this into the equation.

This would be:

-5 = 4 * -2 + b

-5 = -8 + b

3 = b

This means the equation is y = 4x + 3.

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3 years ago
A ladder reaches the top of a 20 foot building. the ladder is 4.5 feet away from the building. how long is the ladder?
KATRIN_1 [288]

Answer:

C

Step-by-step explanation:

do that with pithagoras:

20² + 4,5² = x²

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2 years ago
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3 years ago
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6 0
3 years ago
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4/r=5/7solve for r. Help pls
antiseptic1488 [7]
Hello!

You first cross multiply

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r * 5 = 28

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The answer is 28/5 or 5.6

Hope this helps!
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2 years ago
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