Use a graphing calculator to graph the original function y=1/2x − 4 and the vertically dilated function with a factor k=6. Determine the x-intercepts of both functions.
The original function has an x-intercept of (0,−4), and the dilated function has an x-intercept of (0,−24).
The original function has an x-intercept of (8,0), and the dilated function has an x-intercept of (8,0).
The original function has an x-intercept of (8,0), and the dilated function has an x-intercept of (48,0).
The original function has an x-intercept of (−8,0), and the dilated function has an x-intercept of (−8,0).