1.
Which graph shows a parabola with exactly one root?
A.
B.
C.
A parabola cannot have exactly one root.
D.
Hint
2.
Which table shows a correct set of values for the quadratic function
y
= –
x
2
– 4
x
+ 5?
A.
B.
C.
D.
Hint
3.
The roots of the quadratic equation 2
x
2
+ 4
x
– 30 = 0 are ___________.
A.
3 and –5
B.
–3 and –5
C.
3 and 5
D.
–3 and 5
Hint
4.
Joey is jumping into the pool from the diving board as shown. In the equation,
h
represents his horizontal distance in feet and
v
represents his vertical distance in feet. Find the horizontal distance he will travel before hitting water.
A.
6.5 ft
B.
2.582 ft
C.
1 ft
D.
3.082 ft
Hint
5.
The roots of the quadratic equation
x
2
– 6
x
– 16 are __________.
A.
2 and –8
B.
-2 and 8
C.
6 and 16
D.
-6 and -16
Hint