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Andre45 [30]
2 years ago
8

What is an equation of the line that passes through the points (6,-6) and (-2,-2)

Mathematics
1 answer:
laiz [17]2 years ago
5 0

Answer:

y=-\frac{1}{2}x-3

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: y=mx+b where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

<u />

<u>1) Determine the slope (m)</u>

m=\frac{y_2-y_1}{x_2-x_1} where the two given points are (x_1,y_1) and (x_2,y_2)

Plug in the given points (6,-6) and (-2,-2)

=\frac{-2-(-6)}{-2-6}\\=\frac{-2+6}{-2-6}\\=\frac{4}{-8}\\=-\frac{1}{2}

Therefore, the slope of the line is -\frac{1}{2}. Plug this into y=mx+b:

y=-\frac{1}{2}x+b

<u>2) Determine the y-intercept (b)</u>

y=-\frac{1}{2}x+b

Plug in one of the given points and solve for b

-6=-\frac{1}{2}(6)+b\\-6=-3+b

Add 3 to both sides

-6+3=-3+b+3\\-3=b

Therefore, the y-intercept of the line is -3. Plug this back into y=-\frac{1}{2}x+b:

y=-\frac{1}{2}x-3

I hope this helps!

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