A soccer player uses her head to hit the ball up in the air from a height of 2 meters with an initial vertical volocity of 5 meters per second. The height h in meters of the ball is given by h = -4.9t2 +5t +2, where t is the time elapsed in seconds. How long will it take the ball to hit the ground if no other players touch it? using the quadratic formula , please help me , this is eight grade algebra btw

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Which of the following graphs could represent a quartic function?