Also draw the figure and from the above solu. it is prooved that ABCD is a kite
(-6,6)(-6,2)
notice how ur points have the same x coordinates....this means that u have a vertical line which has an undefined slope. Being that the slope is undefined, u cannot write the vertical line in slope intercept or point slope form.
<span>y=x^2+5x+6
y=4x+12
Solution = (-3,0) and (2,20)
</span><span>y=x^2-3x-1
y=8x-1
Solution = (0,-1) and (11,87)</span>
<span>The answer is :
The lines are perpendicular to each other because the graph of y = –6 is a horizontal line with a slope of 0, and the graph of x = is a vertical line with a slope that is undefined.
A horizontal line always have a constant value of y. It doesn't move up or down. A vertical line always have a constant value of x. It doesn't move right or left.
Slope formula:
m = y2 - y1 / x2 - x1
Horizontal line:
m = 0 / x
m = 0
Vertical line:
m = y / 0
m = undefined.
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