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Tresset [83]
3 years ago
6

How do I do this?

Mathematics
1 answer:
elena55 [62]3 years ago
4 0

Answer:

The sum of 20 and a number,m = 20+m

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What is the equation of the line that passes through the point (-2,5) and has a<br> slope of -4?
adoni [48]

Answer:

\boxed {\boxed {\sf y= -4x -3}}

Step-by-step explanation:

We are asked to find the equation of a line given a point and the slope. We will use the point-slope formula.

y-y_1= m(x-x_1)

In this formula, m is the slope and (x₁, y₁) is the point the line passes through. The slope of this line is -4 and the line passes through (-2,5).

  • m= -4
  • x₁= -2
  • y₁ = 5

Substitute the values into the formula.

y-5 = -4 (x--2)

y-5 = -4 (x+2)

We are finding the equation of the line, so we should find the slope-intercept form or y=mx+b ( where m is the slope and b is the y-intercept).We must isolate the variable y on one side of the equation.

First, distribute the -4 on the right side of the equation. Multiply each term inside the parentheses by -4.

y-5=( -4 *x ) + (-4* 2 )

y-5 =(-4x)+ (-8)\\y-5= -4x -8

5 is being subtracted from y. The inverse operation of subtraction is addition, so we will add 5 to both sides of the equation.

y-5 =-4x -8 + 5

y= -4x -3

The equation of the line is y= -4x -3. The slope of the line is -4 and the y-intercept is -3.

6 0
3 years ago
Anyone please help if u know how to do this
OleMash [197]
I believe it doesnt exist because every one # on the left doesnt have a different # on the right..
5 0
3 years ago
PLZ HELP!!!!
masha68 [24]
I think A might be wrong though
7 0
3 years ago
PLZ ANSWER QUESTION IN PICTURE
Sophie [7]

Answer: y=\frac{1}{3}x+\frac{13}{3}

Step-by-step explanation:

(slope = m)

m=\frac{y_2-y_1}{x_2-x_1}=\frac{4-6}{-1-5}=\frac{-2}{-6}=\frac{1}{3}

y=mx+b, (5,6), (-1,4), m=\frac{1}{3}

y=mx+b\\6=\frac{1}{3}(5)+b\\b=6-\frac{5}{3} \\b=\frac{13}{3}\\y=\frac{1}{3}x+\frac{13}{3}

6 0
2 years ago
The length of a rectangle is 16 less than five times its width
zysi [14]

Answer:

The correct equation would be L = 5w - 16



8 0
3 years ago
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