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Sedbober [7]
3 years ago
12

Write an equation in slope-intercept form for each table below.

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0

Answer:

i.  y=2x

ii. y=x+6

iii. y=-2x-6

iiii. y=-4x+3

iiiii. y=4x-3

Step-by-step explanation:

You can find the slope of the line by putting y2-y1/x2-x1

All you have to do is choose 2 points. Y2 is the second number y and x2 is the second number x. Y1 is the first number y and X1 is the first number X. To find y-intercept you look on the table and see where X is 0 and Y is any number that is the y-int. For example 5 there is no X=0 on the table so you put it in the point slope formula which is y-y1=m(x-x1) where you use the points from the slope. You multiply m to x and m to x1 where you will end up with y-y1=mx+mx1 then you add the y1 to mx1 where you will get the y intercept

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What is the equation of the line with a slope of 1/2 that passes through the point (-8, -2)?
Luba_88 [7]

Answer:

The answer is

y =  \frac{1}{2} x + 2 \\

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

From the question we have

y + 2 =  \frac{1}{2} (x + 8) \\ y + 2 =  \frac{1}{2} x + 4 \\ y =  \frac{1}{2} x + 4 - 2

We have the final answer as

y =  \frac{1}{2} x + 2 \\

Hope this helps you

6 0
3 years ago
Find the Central arc measure
tatiyna

Answer:

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5 0
3 years ago
Which equation represents the line that passes through the
andreev551 [17]

Answer:

y = 1/5x + 2 1/5

Step-by-step explanation:

first find the negative reciprocal slope of 5x + y = 30 because perpendicular lines have negative reciprocal slope:

=> y = -5x + 30, negative reciprocal of the slope -5 is 1/5

substitute the new slope 1/5 and the coordinate (9, 4) into the equation: y = mx + b  to solve for b

=> 4 = 1/5(9) + b

=> 4 = 9/5 + b

=> b = 2 1/5

plug in the slope 1/5 and b = 2 1/5 into the equation: y = mx + b

=> y = 1/5x + 2 1/5

3 0
3 years ago
Solve for x <br> (1 point)
Delicious77 [7]
It should be 13 since 13+8 = 21. 21-7 = 13
5 0
3 years ago
How many solutions does y=3/4x+2 and y=-3/4x+5 have?
Reptile [31]

Answer:

Only one solution

x=1/2

Step-by-step explanation:

Collect like terms.

3/2x=3

Solve for x.

6x=3

x=1/2

5 0
4 years ago
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