Solve the inequality in #15, write its solution set in interval notation, and graph the solution set on a number line. 15) -(4 - 2n) 3(n + 1) Find the slope of the line. Assume that the scale on each axis is 1 unit per tick mark. 16) y x Find the x- and y-intercepts of the line represented by the equation below. Plot both intercepts on a coordinate system and draw the line through them. 17) 4x + y = -4 Write the slope-intercept form of the equation of the line through the given points. 18) through: (1, -4) and (3, -1) Find at least three ordered pairs that satisfy the equation and sketch the graph of the line through them. 19) -2x + 3 y = 3 Solve the system of equations by the method of substitution. 20) 7x + 2 y = 7 y = -7x Worksheet by Kuta Software LLC -3- k r2l0D1`7b vKOultraZ WS`otfMtOwMaDrfeO zLNLSCn.h O LAhljl` UrgisgfhEtjsE KrmelsueQrivIeudW.A ` xMgaXdqeN ^wqiNtUhQ RIjnlfhiPn`idtieA VPdrJeU-MAwlLg\\eQbCraaP