MAC 1105 Quadratic Equations Practice

Which of the following is NOT a quadratic function

• f(x) = -3x²

• f(x) = -5x - x²

• y = 3x³ - 4x + 5

• A = pi.r²

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

The equation
y = x² -12x + 36 has

• 1 solution
• 2 solutions
• no solutions

Find the roots of this equation

x² + x - 6 = 0

• 4, -1

• 3, -2

• -6, 1

• 2, -3

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.8.EE.A.2

• -4, 2
• -2, 4
• -16
• -4

Tags

CCSS.HSA-REI.B.4B

• ±1.5
• 1.5
• ±1
• No real solution

Tags

CCSS.HSA-REI.B.4B

Solve n² - 2n = 0

• n = 2 and 0
• n = -2 and 0
• n = 2
• n = 0

Solve the quadratic equation:  $\frac{1}{3}\left(x+2\right)^2-5\ =\ 4$  

•  $x\ =\ 2\ +3\sqrt{3}$  

•  $x=2+\sqrt{3}$  

•  $x\ =\ 2\ \pm\ 3\sqrt{3}$  

•  $x\ =\ 2\pm\ \sqrt{3}$  

Solve the quadratic equation:  $\left(x+1\right)^2-4\ =\ 4x$  

•  $x\ =\ 3\ and\ x\ =\ -1$  

•  $x\ =\ -3\ and\ x\ =\ 1$  

•  $x\ =\ 3\ and\ x\ =\ 1$  

•  $x\ =\ -3\ and\ x\ =\ -1$