In a room, 9 students have glasses on, while 15 do not. Give the percentage of students wearing glasses. (Round to the nearest t
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Answer:
(x, y) = (-4, -15)
Step-by-step explanation:
Perhaps you want the solution to ...
y = 3/4x -12
y = -4x -31
Equating the two expressions for y gives ...
3/4x -12 = -4x -31
3/4x = -4x -19 . . . . . add 12
3x = -16x -76 . . . . . multiply by 4
19x = -76 . . . . . . . . . add 16x
x = -76/19 = -4 . . . . divide by 19
y = (3/4)(-4) -12 = -15 . . . . use the first equation to find y
The solution to this system of equations is ...
(x, y) = (-4, -15)
As you can see in the image, point C must be (-2, -2), because it is the only point that will create a right triangle that is in the third quadrant.
To find the distance between point A and point C, just subtract the y-values.
To find the distance between point A and point C, just subtract the y-values.