3 years ago

How are the points (8,7) and (-8,7) related?

Mathematics

1 answer:

melisa1 [442]3 years ago

8 0

Answer:

The point (-8,7) is the reflection of the point (8,7)

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The slope of the lines that passes through the points (-10,0) and (-13,3)

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Answer:

-1

Step-by-step explanation:

The formula to find the slope of a line is:

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2 years ago

Which is a solution to (x – 3)(x + 9) = –27? x = –9 x = –3 x = 0 x = 6

likoan [24]

Answer:

x = 0

Step-by-step explanation:

Since the product is not equal zero, we need to multiply both parenthesis first:

$(x-3)(x+9) =-27$

$x*x+x*9+(-3)*x+(-3)*9=27$

$x^2+9x-3x-27=27$

$x^2+6x-27=27$

Add 27 from both sides:

$x^2+6x-27+27=-27+27$

$x^2-6x=0$

Factor $x$ out:

$x(x+6)=0$

Apply the zero product:

$x=0,x+6=0$

$x=0,x=-6$

The solutions of the equation are $x=0$ and $x=-6$ .

We can conclude that the correct answer is x = 0.

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