LESSON 8-2|SOLVE QUADRATICS BY GRAPHING

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

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

Which is a zero of the graph?

• 0
• -1
• 1.5
• -3

What are the roots of the function
f(x)= (x - 2)(x + 3)?

• x = - 2 or x = 3
• x = 2 or x = -3
• The are no real roots
• x = 2 or x = 3

.How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Which of the following is a solution to the function?  (x - 8)(x - 9) = 0

• 8
• -9
• -17
• 0

What are the solutions of this graph?

• -2 and 3

• -1/2 and -6

• -2 and -6

• 3 and -6

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

What  are the solutions of this graph?

• -2 and 3
• -1/2 and -6
• -2 and -6
• 3 and -6

Which of the following represents the solutions to the equation:  
3x² + 4x – 20 = 0?

• 0 and -20
• 3.33 and -2
• -3.33 and 2
• -0.67 and -21.33

What are the solutions?

• 0 and 8
• -2 and -4
• 3 and -1
• 2 and 4