Unit 11B review

How many solutions does this quadratic function have?

• 0

• 1

• 2

• Can't tell

How many solutions does this quadratic function have?

• 0

• 1

• 2

• Can't tell

What is another word that describes the zeroes of a quadratic function?  

• y-intercepts
• vertex
• x-intercepts
• maximum

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

What are the solutions of this graph?

• -2 and 3

• -1/2 and -6

• -2 and -6

• 3 and -6

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Solve using square roots.

k² - 6 = 30

• k = √36

• k = 36 or - 36

• k = 6, k = -6

• no solution

Solve using square roots.

5m² - 25 = 0

• $m=\pm5$
  

• $m=\pm25$
  

• $m=\ \pm\sqrt{5}$
  

• $m=\pm\sqrt{25}$
  

Solve using square roots.

• ±√9
• ±3
• ±1
• No real solution