Which represents the solution(s) of the graphed system of equations, y = x2 - 2x and y = -2x - 1?

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Find the arc length of the semicircle. 7the grade