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satela [25.4K]
3 years ago
6

in the xy-coordinate plane, the points (4, 2) and (-1, k) are on a line that is perpendicular to the line y = 2x + 1. What is th

e value of k?
Mathematics
2 answers:
mart [117]3 years ago
7 0

Answer: The value of x is 7/5

Advocard [28]3 years ago
4 0
The value of x is 5/7
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How do you write the equation of a line (in slope intercept form) with three given points?​
Mrrafil [7]

With even just two points, you can find the equation of a line in slope-intercept form.

Slope-intercept form: y=mx+b where m is the slope and b is the y-intercept

<u>1) Solve for the slope (</u>m<u>)</u>

The equation to solve for the slope is m=\frac{y_2-y_1}{x_2-x_1} when the two points are (x_1,y_1) and (x_2,y_2). Plug the coordinates of these points into the equation and solve for m.

Then, plug m into y=mx+b.

<u>1) Solve for the y-intercept (</u>b<u>)</u>

Then, take any of the given points and plug it into y=mx+b along with the slope. Isolate b to get the y-intercept. Then, plug both m and b back into y=mx+b to get your final equation.

I hope this helps!

3 0
3 years ago
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Answer quick please.
Brilliant_brown [7]

Answer

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Step-by-step explanation:

4 0
2 years ago
What is the equation of the line that passes through the point (-8,1) and has a slope of -3/4
ioda

Answer:

y=-3/4-5

Step-by-step explanation:

plug in ordered pair  1= -3/4(-8)+b

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3 years ago
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Use the graph below to answer questions 6, 7, and 8.
Andrei [34K]

Answer:

Question 6: the slope is 3

Question 7: 5

Question 8: y=3x+5

Step-by-step explanation:

Using rise over run, You can see that it is 3 in rise and 1 in rise. 3/1 is 3. The y-int is 5 because that is where it touches the y-axis. The formula is y=mx+b where m is slope and b is y-int. Sub the other answers in to find the answer. Hope this helps! Pls mark brainliest!

4 0
3 years ago
Can someone please help me
Viefleur [7K]
You could try finding the answer key

8 0
3 years ago
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