3 years ago

Describe what happens to the x' and y-coordinates after a point is reflected across the x- axis

1 answer:

3 0

The y coordinate would become a negative or positive depending on the number. The x coordinate stays the same. For example, if the numbers were (3,2), then they the x coordinate, 3, stays the same and the y coordinate, 2, changes to -2 (negative 2).

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Use the graph to answer the question. Find the slope

Liula [17]

We can take the two points given and plug them into the slope formula.

$\sf~m=\dfrac{y_2-y_1}{x_2-x_1}$

(-3, 3), (1, -5)
x1 y1 x2 y2

$\sf~m=\dfrac{-5-3}{1-(-3)}$

Subtract:

$\sf~m=\dfrac{-8}{4}$

Divide:

$\sf~m=-2$

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3 years ago

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saw5 [17]

Answer:

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2 years ago

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Hatshy [7]

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3 years ago

A rectangle had a length of 2x-7 and a with of 3x+8y. Write and simplify an expression for the perimeter of that rectangle?

wel

Answer:

Step-by-step explanation:

A rectangle had a length of 2x-7 and a width of 3x+8y

Perimeter P = 2(l + w)

P = 2(2x - 7 + 3x + 8y)

P = 2(5x + 8y - 7)

P= 10x + 16y - 14

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