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Vaselesa [24]
3 years ago
13

Find the image of (2,-7) after a reflection over the x-axis

Mathematics
1 answer:
asambeis [7]3 years ago
3 0

Answer: (2, 7)

Step-by-step explanation:

To reflect something over the x-axis, simply invert the y value.  Simply turn -7 into 7.

Hope it helps <3 :)

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Find the equation of the line through (6,4) and (-3,-8)
alexdok [17]

Answer:

y = 4/3x - 4

Step-by-step explanation:

to find the equation of a line with 2 points, we use the slope formula which is:

\frac{y_2-y_1}{x_2-x_1}

we will use (6,4) as x_1[tex] and [tex]y_1 and we will use (-3,-8) as x_2[tex] and [tex]y_2. we plug this into the slope formula:

\frac{-8-4}{-3-6}

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the slope is \frac{-12}{-9}

but we can simplify this further by dividing the fraction by -3

-12 / -3 = 4

-9 / -3 = 3

the simplified version of the slope is \frac{4}{3}

we can write this in slope-intercept form which is y =mx + b, with b being the y intercept and m being the slope

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4 = 8 + b < subtract 8 from both sides

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the equation looks like the following:

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3 years ago
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