First, put the equation of the line giveninto slope-intercept form by solving fory. You get y = 2x +5, so the slope is –2.Perpendicular lines have opposite-reciprocal slopes, so the slope of theline we want to find is 1/2. answer y=-1/2
Answer for the second question: 5*2 is 10 10 *2 is 20 20*2 is 40 40*2 is 80 80 *2 is 160 That's five hours 160*2 is 320 320*2 is 640 640*2 is 1280 1280*2 is 2560 The answer should be 2560