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elena-14-01-66 [18.8K]
3 years ago
6

Determine the slope and y-intercept of each graph. Then, write the equation of the graph in slope-intercept form. please help ​

Mathematics
1 answer:
olchik [2.2K]3 years ago
7 0

Answer:

slope = 2

y intercept = ( 0 , -1 )

equation:

y = 2x - 1

Step-by-step explanation:

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(Second time asking this please help) A multiple choice question has 6 options. What is the percentage of getting the answer cor
igomit [66]

Answer:

A multiple choice question with 6 options will have a 16.7% chance of getting the answer correct, and a ratio of 1:6.

Step-by-step explanation:

You have a 1 in 6 chance of getting the answer correct, which can be represented with the fraction \frac{1}{6} .

To get a percentage, simply divide the 1 by the 6 and you will get an answer of 0.16666667. Multiply this by 100 and you have your answer.

To get a ratio, convert the fraction to a ratio making the left side of the ratio the numerator (the 1)  and the right side the denominator (the 6).

5 0
3 years ago
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Write an equation for a circle with a diameter that has endpoints at (–4, –7) and (–2, –5). Round to the nearest tenth if necess
Zinaida [17]

since we know the endpoints of the circle, we know then that distance from one to another is really the diameter, and half of that is its radius.

we can also find the midpoint of those two endpoints and we'll be landing right on the center of the circle.

\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-4}~,~\stackrel{y_1}{-7})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{-5})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{diameter}{d}=\sqrt{[-2-(-4)]^2+[-5-(-7)]^2}\implies d=\sqrt{(-2+4)^2+(-5+7)^2} \\\\\\ d=\sqrt{2^2+2^2}\implies d=\sqrt{2\cdot 2^2}\implies d=2\sqrt{2}~\hfill \stackrel{~\hfill radius}{\cfrac{2\sqrt{2}}{2}\implies\boxed{ \sqrt{2}}} \\\\[-0.35em] ~\dotfill

\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ (\stackrel{x_1}{-4}~,~\stackrel{y_1}{-7})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{-5})\qquad \qquad \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left( \cfrac{-2-4}{2}~~,~~\cfrac{-5-7}{2} \right)\implies \left( \cfrac{-6}{2}~,~\cfrac{-12}{2} \right)\implies \stackrel{center}{\boxed{(-3,-6)}} \\\\[-0.35em] ~\dotfill

\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{-3}{ h},\stackrel{-6}{ k})\qquad \qquad radius=\stackrel{\sqrt{2}}{ r} \\[2em] [x-(-3)]^2+[y-(-6)]^2=(\sqrt{2})^2\implies (x+3)^2+(y+6)^2=2

4 0
3 years ago
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Can someone explain how to factor a number like in the picture I attached? Thank you!
xenn [34]

hey man im sorry i just need points because im strugling

Step-by-step explanation:

5 0
3 years ago
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You would move all terms that don’t contain x to the right side and solve. Answer : x= -3
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3 years ago
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-y-4=4x<br> put in y=mx+b
marishachu [46]

-y-4=4x\\ \\ -y=4x+4\\ \\ y=-4x-4

<h3>First part of the problem:</h3><h3>-y - 4 = 4x</h3><h3>    + 4   + 4</h3><h3>-y + 0 = 4x + 4</h3><h3>      -y = 4x + 4</h3><h3 />

Hope this helps!

3 0
3 years ago
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