21x+3y=18 in point slope from

Mathematics

1 answer:

sveta [45]3 years ago

3 0

Answer:

y=-7x+6

Step-by-step explanation:

-21 divided by 3x is- 7x . 18 divided by 3 is 6.

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21. Choose the correct solution and graph for the inequality. (1 point)

Ilya [14]

Solve for X on both equations

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Add two on both sides
2x < -10

Divide by two on both sides
2 < -5

2x + 3 > 7

Subtract three on both sides
2x > 4

Divide by two on both sides
x > 2

A. x < -5 or x > 2

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3 years ago

Write an equation in slope-intercept form for the line that satisfies the following condition. slope 7, and passes through (5, 3

allsm [11]

Y = mx + b
slope(m) = 7
(5,30)...x = 5 and y = 30
now we sub and find b, the y int
30 = 7(5) + b
30 = 35 + b
30 - 35 = b
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so ur equation is : y = 7x - 5 <==

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3 years ago

What is 9x-7y=-7 in slope intercept form?

Novay_Z [31]

Slope intercept form is y = mx + b

So if you start with 9x - 7y = -7, the first thing you need to do is move the 9x to the other side of the equation by subtracting it from both sides.
9x - 7y = -7
-9x -9x

Now you have -7y = -9x -7

For the equation to be in slope intercept form now you should divide every term by the number in front of your y. In this case divide every term by -7
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-7 -7 -7

That leaves you with: y = 9x/7 + 1

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What is the percent or change-----$84 to 12%

zubka84 [21]

$84 to 12%
10.08
is the answer

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3 years ago

Write an equation of the perpendicular bisector of the segment with the endpoints (8,10) and ( -4,2).

ale4655 [162]

Answer:

The required equation is:

$y = -\frac{3}{2}x+9$

Step-by-step explanation:

To find the equation of a line, the slope and y-intercept is required.

The slope can be found by finding the slope of given line segment. A the perpendicular bisector of a line is perpendicular to the given line, the product of their slopes will be -1 and it will pass through the mid-point of given line segment.

Given points are:

$(x_1,y_1) = (8,10)\\(x_2,y_2) = (-4,2)$