Is y=-2/3x+1 and y=-3/2+5/2 perpendicular

No

Step-by-step explanation:

For the two lines to be perpendicular, the product of their slopes must be -1.

Here, the product is

... (-2/3)×(-3/2) = 6/6 = 1 ≠ -1

so, the lines are not perpendicuar.

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They are reflections of each other across the diagonal line y=x-2.

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there are two angles that are alternate interior angle with angle 9

the angle 15 and angle 7 are alternate interior angle with angle 9.

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