Will give brainliest! 2 divided by 3.6 in standard algorithm

Find the roots of the equation below. x^2 - 6 + 9 = 0

Is the point (0, 8) on the x-axis or y-axis? how do you know?

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3