If a pair of perpendicular lines are rotated, which is true?

a) rotating perpendicular lines result in parallel lines.
eliminate
b) the lines remain perpendicular only if rotated 180°.
c) the lines remain perpendicular only if rotated 360°.
d) rotated perpendicular lines always remain perpendicular lines.

Rotated perpendicular lines always remain perpendicular lines.

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Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!