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LUCKY_DIMON [66]

3 years ago

14

What is the point of intersection when the system of equations below is graphed on the coordinate plane? (1, –3) (–1, 3) (1, 3)

(–1, –3)

2 answers:

Ainat [17]3 years ago

5 0

$( - 1 - 3)$
it's lower

Lubov Fominskaja [6]3 years ago

5 0

Answer:(-1,3)

Step-by-step explanation:

Correct answer

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2x-3y=-1, 2x+y=11solve the system equation

agasfer [191]

Answer:

x = 4, y = 3

Step-by-step explanation:

2x - 3y = -1

- <u>2x + y = 11</u>

-4y = -12

y = 3

solve for 'x':

2x -3(3) = -1

2x - 9 = -1

2x = 8

x = 4

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3 years ago

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Arlecino [84]

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3 years ago

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Find the slope of the line<br>A -3<br>B 3 <br>C -2 <br>D 2

VikaD [51]

Y=-2x-10
So it would be -2

7 0

3 years ago

HELP IM FAILING MATH OOOOFFFF

meriva

The point-slope form:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points $(-4,\ -1)$ and $\left(\dfrac{1}{2},\ 3\right)$ .

Substitute:

$m=\dfrac{3-(-1)}{\frac{1}{2}-(-4)}=\dfrac{4}{4\frac{1}{2}}=\dfrac{4}{\frac{9}{2}}=4\cdot\dfrac{2}{9}=\dfrac{8}{9}\\\\y-(-1)=\dfrac{8}{9}(x-(-4))\\\\y+1=\dfrac{8}{9}(x+4)$

The standard form: Ax + By = C

$y+1=\dfrac{8}{9}(x+4)\qquad\text{multiply both sides by 9}\\\\9y+9=8(x+4)\qquad\text{use distributive property}\\\\9y+9=8x+32\qquad\text{subtract 9 from both sides}\\\\9y=8x+23\qquad\text{subtract 8x from both sides}\\\\-8x+9y=23\qquad\text{change the signs}\\\\\boxed{8x-9y=23}$

4 0

4 years ago