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3 years ago

The points (4,r) and (8,-5) lie on a line with slope -1. Find the missing coordinate rp

1 answer:

6 0

$\bf (\stackrel{x_1}{4}~,~\stackrel{y_1}{r})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{-5}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-5-r}{8-4}~~=~~\stackrel{\stackrel{m}{\downarrow }}{-1}\implies \cfrac{-5-r}{4}=-1 \\\\\\ -5-r=-4\implies -r=1\implies r=-1$

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Step-by-step explanation:

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4 years ago

I need 20 characters idk why, but I need a step by step explanation 5y-3(2-y)=10

lana66690 [7]

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Solve for y:

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4 years ago

Suppose a biological cell contains 400 genes. When treated radioactively the probability that

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3 years ago

4. Which of the following is an example of a proper fraction?

n200080 [17]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the slope- intercept of (-8,8) and (1,10)

Aleonysh [2.5K]

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so the the answer is rise/run = 2/9

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3 years ago