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Bingel [31]
3 years ago
9

Find the equation of a line through (2,-4) and (-7,-4)

Mathematics
1 answer:
steposvetlana [31]3 years ago
3 0
---------------------------------------------
Find slope : 
---------------------------------------------
\text {Slope = }  \dfrac{-4 - (-4)}{-7-2}  =  \dfrac{0}{-9}  = 0

When the slope is 0, the graph is a horizontal line.

Equation of the graph is y = -4

------------------------------------------------------
Answer: y = -4
------------------------------------------------------

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The slope-intercept form of the equation of a line that passes through point (-2,-13) is y=5x-3. What is the point-slope form of
marissa [1.9K]

Answer:

y + 13 = 5(x + 2)

Step-by-step explanation:

<h3>Point - slope form of equation: </h3>

        \sf \boxed{\bf y - y_1=m(x-x_1)}

Slope intercept of the line : y =5x - 3

Comparing with y = mx +b , m =slope = 5

m = 5 and Point (-2 ,-13)

     y - [-13] = 5(x - [-2])

     y + 13 = 5(x + 2)

   

4 0
2 years ago
Answer this for points and brainilest (work must be included)
marin [14]

Answer:

4

Step-by-step explanation:

4b + 5 = 1 + 5b

4 = 1b

4 = b

4 0
2 years ago
Brittany surveyed the students in three different Chemistry classes regarding the average number of hours of sleep they get each
aalyn [17]
Class B has the most consistant sleep because there is less of a difference between 6.87 and 3.65 than the other classes.
6 0
3 years ago
Read 2 more answers
L=4m\n+p solve for p
Anastasy [175]
I think the correct answer would be : p = -n+4m/L
I hope this helps !
7 0
3 years ago
–3 = –2x2 + 2x
wel

Answer:

Determine the next step for solving the quadratic equation by completing the square.

0 = –2x2 + 2x + 3

–3 = –2x2 + 2x

–3 = –2(x2 – x)

–3 + = –2(x2 – x + )

StartFraction negative 7 Over 2 EndFraction = –2(x – StartFraction 1 Over 2 EndFraction)2

StartFraction 7 Over 4 EndFraction = (x – StartFraction 1 Over 2 EndFraction)2

The two solutions are Plus or minus StartFraction StartRoot 7 EndRoot Over 2 EndFraction

-7/2 = -2(x - ½)²

Step-by-step explanation:

0 = –2x^2 + 2x + 3

Subtract 3 from each side

-3 = –2x^2 + 2x

Factor out the -2

-3 =- 2(x^2 -x)

Take the coefficient of x and divide by 2 and square it

-1 /2 = -1/2 ^2 = 1/4

Add it to each side  Remember the -2 on the outside so we need to multiply it by -2  

-2 *1/4 =  -1/2

-3 -1/2= -2(x^2 -x +1/4)

-7/2 = -2(x^2 -x +1/4)

-7/2 = -2(x-1/2)^2

7/2 = -2(x - ½)²

4 0
2 years ago
Read 2 more answers
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