Question 416161
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b>
Hi
 h(t) metres represents the height of a batted baseball as a function of time, t seconds, 
"since the ball was hit"
h(t) = -2.1(t-2.4)^2 + 13  
h(0) = -2.1)-2.4)^2 + 13  = 1.1 to nearest tenth of metre
h(1) = -2.1(-1.4)^2 + 13  = 8.9 nearest tenth of metre
{{{drawing(300,300, -1,15,-15,15,  grid(1),
circle(2.4, 13,0.4),
circle(0, 1.1,0.4),
circle(1, 8.9,0.4),
graph( 300, 300, -1,15,-15,15, -2.1(x-2.4)^2+13))}}}