Mathematics: There are 84 boys in a senior class of 146 students. find the ratio of boys to girls. (note: if you know the total number of student in the class and the number of boys, what do you need to do to find the number of girls?

There are 84 boys in a senior class of 146 students.

sherlock19

03.09.2021

First, we must find the slope of the line using slope formula*.

$m = \frac{-5 - 1}{-4 - 4} = \frac{-6}{-8} = \frac{3}{4}$

Second, we now find the y-intercept, or b, using slope-intercept form, the slope we found, and one of the given points.

$1 = \frac{3}{4}(4) + b\\\\1 = 3 + b\\\\-2 = b$

Lastly, we can now create the equation of the line.

$m = \frac{3}{4}\\$ b = -2

The equation of the line that goes through the given points is C. $y = \frac{3}{4}x - 2$

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