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elena-14-01-66 [18.8K]
3 years ago
15

Complete the equation of the line through (2,1) and (5,-8)

Mathematics
1 answer:
Mila [183]3 years ago
7 0

First we calculate the slope (which is called "m".

Slope = m = (Y2 -Y1) ÷ (X2 -X1)

m = (-8 -1) / (5 -2) = -9 / 3 = -3

We next fill in this equation: b = y -mx

We know m = -3 and we can choose a point (2, 1) to calculate "b"

b = 1 --3 * 2 b = 7

Putting this into y = mx +b

y = -3x +7


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Write y = 1/6x + 4 in standard form using integers.
katovenus [111]
The standard form of an equation of a line would be written as Ax + By = C where A, B and C are numbers. To write the given equation to this form, we do as follows:

<span>(y = x/6 + 4) 6
6y = x + 24
-x + 6y = 24

Therefore, the correct answer from the choices listed above is option B.

Hope this helps. Have a nice day.</span>
8 0
3 years ago
Read 2 more answers
Please help as soon as possible ​
Kay [80]
B)


it is 15 more than A so the A has to go first
6 0
3 years ago
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Find and interpret the slope of the line containing the given points. (12,4) and (10,10)
MAVERICK [17]

Answer:

3/-1

Step-by-step explanation:

The slope is 3/-1 (Rise 3 on the y axis, run to the negatives by 1 on the x axis)

To find the slope of two points, use the formula of y2-y1/x2-x1 (For example, with this equation it would be 10-4/10-12)

I'm not sure what it means to interpret the slope, but hopefully this helped you!

3 0
3 years ago
What is the slope for (−10,1) And (0,−4)<br> A -2<br> B - 1/2<br> C 2<br> D 1/2
alukav5142 [94]

Answer:B

Step-by-step explanation: dy/dx = (1--4)/(-10-0)

= 5/-10

=-1/2

5 0
3 years ago
Solve the following inequality:<br> -(x - 1) + 20 &lt;-3(x - 3)<br> What?
mamaluj [8]

Answer:

x<15

Step-by-step explanation:

-(x - 1) + 20 <-3(x - 3)

-x + 1 + 20 <-3x + 9

-x + 21 < -3 + 9

-x < -3 + 9 - 21

-x÷ -1 < -15 ÷ -1

x > 15

5 0
3 years ago
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