Quadratic Equations

UK Secondary (7-11)

Solve applications of quadratics

An object launched from the ground has a height (in feet) after $t$`t` seconds that is modelled by the graph.

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a

What is the maximum height of the object?

$576$576 feet

A

$6$6 feet

B

$24$24 feet

C

$600$600 feet

D

$576$576 feet

A

$6$6 feet

B

$24$24 feet

C

$600$600 feet

D

b

After how many seconds is the object at its maximum height?

$13$13 seconds

A

$4$4 seconds

B

$8$8 seconds

C

$6$6 seconds

D

$13$13 seconds

A

$4$4 seconds

B

$8$8 seconds

C

$6$6 seconds

D

c

How many seconds after launch does the object return to the ground?

$0$0 seconds

A

$6$6 seconds

B

$13$13 seconds

C

$12$12 seconds

D

$0$0 seconds

A

$6$6 seconds

B

$13$13 seconds

C

$12$12 seconds

D

Easy

Less than a minute

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