3rd one Reason: Point slope formula: y-y1=m(x-x1) y1=-4 x1=1 m=1/2 Put it all together and you get a final answer of: y-(-4)=1/2(x-1) two negatives make one positive so, final answer:y+4=1/2(x-1)
I just graphed this equation, and it shows that the projectile will hit the ground at 5.3 seconds. I could be wrong but I'm going with the calculator is right I hope. I hope this helps you!