A golf player hits a golf ball from a tee with
an initial velocity of 80 feet per
second. The height of the golf
ball t seconds after it is hit is
given by h = -16t 2 + 80t.
1. How long is the golf ball in
the air?
2. What is the maximum height
of the golf ball?
3. How long after the golf ball is hit
does it reach its maximum height?
4. What is the height of the golf ball after 3.5 seconds?
5. At what times is the golf ball 64 feet in the air? Explain.

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

answer: an 8-foot rope is tied from the top of a pole to a

stake in the ground, as shown in the diagram

below

step-by-step explanation: