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Talja [164]
2 years ago
10

Plz help asap cant figur out

Mathematics
1 answer:
sesenic [268]2 years ago
7 0

Answer:

a) y=3x-11

b) y=-1/3x-1

Step-by-step explanation:

First find the slope of the line

rise/run

rise is 3

run is 1

so slope is 3

since this line is parallel to "a", the slope of "a" will also be 3

the equation of a will be

y-y1=3(x-x1) -- where x1 and y1 will be the points it passes through (3,-2)

y-(-2)=3(x-3)

y+2=3x-9

y=3x-9-2

y=3x-11

since this line is perpendicular to "b", the slope of "b" will also be reciprocal negative , -1/3

y-y1=-1/3(x-x1) -- where x1 and y1 will be the points it passes through (3,-2)

y-(-2)=-1/3(x-3)

y+2=-1/3x+1

y=-1/3x+1-2

y=-1/3x-1

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The rectangle below has an area of x^2 - 9 square meters and a width of x - 3 meters.
Rama09 [41]

Answer:

x+3

Step-by-step explanation:

Area of a rectangle is L\cdot W.

We know the width, W, is x-3 and we know the area is x^2-9.

Inputting this in our formula above we get:

x^2-9=L(x-3)

L is a an expression such that when you multiply it to (x-3) gives you (x^2-9).

x^2-9 is a difference of squares and can be factored using:

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x^2-9=(x-3)(x+3).

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3 years ago
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Answer and Step-by-step explanation:

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Step-by-step explanation:

When solving for an unknown variable that has a number preceding it, you will divide both sides of the equation by this number, which is known as the coefficient.

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