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Solnce55 [7]
3 years ago
13

Please help! I will mark as brainliest IF answer is right. <3

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0

Answer:

y=\frac{7}{4}x-9

Step-by-step explanation:

Question:

Find the equation of the line through the point (4, -2) with slope \frac{7}{4}

Answer + Step-by-step explanation:

Answer: y=\frac{7}{4}x-9

Step-by-step explanation:

When trying to find the equation of a line passing through a point and then given the slope, always remember if you're trying to write the equation in slope-intercept form, find the slope and the y-intercept of the equation.

Slope-Intercept form: y = mx + b where m = slope and b = y-intercept

so the slope is already given but we have to find the y-intercept.

so... the equation of the line with a slope of \frac{7}{4} is:

y=\frac{7}{4}x

but in addition, we need a y-intercept so...

y=\frac{7}{4}x+b

now use the given point on the question "(4, -2)" to solve for the y-intercept

so plug in the coordinates of the point in the equation:

y=\frac{7}{4}x+b

(-2)=\frac{7}{4}(4)+b

-2=\frac{28}{4} +b

-2=7+b

b=-2-7

b=-9

so the y-intercept of the line is -9

and the equation of the line is y=\frac{7}{4}x-9

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