Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t)=-16t^2 +704t. after how many seconds does the projectile take to reach its maximum height? show work

The easiest way in which this question could be answered is to find the x-coordinate of the vertex, which is also the equation of the axis of symmetry:

In this quadratic expression, a = -16 and b = 704.

The equation of the axis of symmetry is thus t = -b / (2a) = -704 / (2*(-16)) = 22.

The max height is attained after 22 sec.

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.