You have been given coordinate A (8, 2). Determine coordinate A’ which is a reflection result of coordinate A with y = 4, followed by 90ᴼ rotation with axis point (1, 2).

Identify the translation rule on a coordinate plane that verifies that square a(-4, 3), b(-4, 8), c(-9, 3), d(-9, 8) and square a'(-3, 2), b'(-3, 7), c'(-8, 2), d'(-8, 7) are congruent.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

When a rectangle is dilated, how do the perimeter and area of the rectangle change?