Solving Quadratic Equations: Quadratic Formula — Test Answers
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The function g(x) is defined as g(x) = 6x2 + 23x – 4. When does g(x) = 0?
A
x = –6 or x =
B
x = –4 or x =
C
x = or x = 6
D
x = or x = 4
3
What is the value of i 97 – i?
A
–iB
0C
–2iD
i Superscript 96
4
Fiona is completing the square to solve the polynomial equation.x2 – 4x + 1 = 0
A
isolating the constant 1B
adding 4 to both sides of the equationC
isolating the second term, –4xD
adding 1 to both sides of the equation5
Solve x2 + 6x = 7 by completing the square. Which is the solution set of the equation?
A
{–7, 1}B
(negative 3 minus StartRoot 10 EndRoot comma negative 3 + StartRoot 10 EndRoot)
C
(3 minus StartRoot 10 EndRoot comma negative 3 + StartRoot 10 EndRoot)
D
{1, 7}6
A quadratic equation of the form 0 = ax2 + bx + c has one real number solution. Which could be the equation?
A
0 = 2x2 – 4x + 1B
0 = 2x2 – 5x + 3C
0 = –2x2 – 4x – 2D
0 = –2x2 – 3x – 17
Solve x2 – 8x = 20 by completing the square. Which is the solution set of the equation?
A
{–22, 14}B
{–14, 22}C
{–10, 2}D
{–2, 10}8
Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = –6. Which function could Heather be writing?
A
f(x) = x2 + 36x + 12B
f(x) = x2 – 36x – 12C
f(x) = –x2 + 12x + 36D
f(x) = –x2 – 12x – 36Did you find these answers helpful?
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