Does anyone know the answer
2 answers:
Which of the following points are on the line given by the equation y = 1/2 X?
Check all that apply.
ANSWER A(2,1) , C(-2,-1) , D(4,2)
Explanation : Each point has two coordinates represented by the pair (x, y)
Applying the values of x of each point, to the equation that they have given us, we can verify that we obtain the value of Y that is the second coordinate of each point.
A. (2,1) => Y = X/2 = 2/2 = 1 ¡Checked!
C. (-2,-1) => Y = X/2 = -2/2 = -1 ¡Checked!
D. (4,2) => Y = X/2 = 4/2 = 2 ¡Checked!
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Well, the area of a trapezoid is A = (
+ 
) * h * 1/2 so you can use the area of a parallelogram, which is A = l * w, by splitting the trapezoid into 2 triangles and one rectangle. So you'd use A = l * w for the rectangle and A = 1/2bh for the triangles. You'd get the same answer!