An object is launched from a platform. Its height (in meters), x seconds after the launch, is
modeled by:
h(x) = -5x2 + 20x + 60
How many seconds after launch will the object land
on the ground?
seconds

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.