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4 years ago

What’s the slope of 4x+5y= -20

Mathematics

2 answers:

Morgarella [4.7K]4 years ago

6 0

Answer: y = -4/5x-4

Step-by-step explanation:

You start with 4x+5y=-20

Isolate y by moving 4x to the other side, now your problem should look like:

5y=-4x-20

To get y by itself, divide both sides by 5, (don't forget to divide -20 by 5 too)

y=-4/5x-4

Murrr4er [49]4 years ago

4 0

Answer:

-4/5

Step-by-step explanation:

Lets put the equation in slope intercept form

4x+5y = -20

Subtract 4x from each side

4x-4x+5y = -4x-20

5y = -4x-20

Divide each side by 5

5y/5 = -4x/5 -20/5

y = -4/5 x -4

The equation is in the form y = mx+b where m is the slope and b is the y intercept

the slope is -4/5 and the y intercept is -4

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Firstly, solve inside the parentheses: $\sqrt{(2)^2+(-5)^2}$

Next, solve the exponents: $\sqrt{4+25}$

Next, solve the addition, and XY's distance will be √29

(The process is the same with the other 2 sides, so I'll go through them real quickly)

YZ:

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In short, your answer is 14.8, or the second option.

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Step-by-step explanation:

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