Answer:
y=-2/3x+6
Step-by-step explanation:
Graph it
3b because b^2-4= 1/b. So 2/1/b= 2b b+2b = 3b
If someone covers 4 laps in 12 minutes, he would be able to cover 1 lap in 3 minutes if that was the question. The question isn’t really clear.
Your parabola should look like this image. The vertex is at (-1, 9), and you can use any of the x-intercepts (-4, 0) & (2, 0) or the y-intercept (0, 8) as a second point.