solve each system firs by graphing, then using algebra. y=-4x+1 and y=5x+-8

Answer 1

y=-4x +1

y= 5x -8

first is a downward sloping line with y intercept (0,1)

2nd is an upward sloping line with y intercept (0,-8)

they cross like a slim vertically elongated "X" with intersection at (1,-3)

subtract the 2 equations to get

0=-9x+9

x = 9/9= 1

y=5(1)-8 = -3

the point (1,-3)