WorksheetsAssessment on Quadratics
Total questions: 16
Worksheet time: 1hrs 23mins
*Hint: Solutions = roots = zeros = x-intercepts
If the discriminant is positive, then the solution will be
one real solution
two real solutions
no real solutions
one imaginary solution
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
x2 + 12x + ____
Given the perfect square trinomial, identify the equivalent expression
x2-18x+81
(x-18)2
(x-9)2
(x+81)2
(x+9)2
x2 + 6x = 5
Solve by taking the square root:
4x2 = 100
±10
±25
±5
5
p2 + 12p + 35 = 0
The height of an object thrown into the air can be modeled by the formula y=−16x2+70x+95
, where y is in feet after x seconds.
What is the initial height of the object?
70 feet
95 feet
149 feet
-16 feet
h=−16t2+64t+960
A ball is thrown into the air with an upward velocity of 64 ft/s. Its height, h, after t seconds is given by the function above.
When did the ball hit the ground?
10 seconds
2 seconds
5 seconds
7 seconds
A ball is thrown into the air with an upward velocity. Its height, h, after t seconds is given by the function below.
h=−16t2+64t+960
What is the maximum height reached?
1024 feet
64 feet
960 feet
2 feet
Solve by factoring.
b2 + 2b - 24 = 0 (hint: find the zeros) FACTOR!
x = 6 or x = -4
x = -6 or x = -4
x = 6 or x = 4
x = -6 or x = 4
