Non-linear equations (one variable)

Use the graph to determine the solutions.

• -1 and -3
• 1 and -3
• 1 and 3
• -1 and 3

Calculate the zero value to the left of the vertex.

y = - x² + 4x + 6

• (-1.16, 0)

• (1.16, 0)

• (5.1, 0)

• (-5.1, 0)

 $y=x^2-3x-28$  

• 1 & 6
  

• 4 & 7

• 1 & 7

• -4 & 7

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For the function above, is the discriminant positive, negative, or zero?

• Positive
• Negative
• Zero
• Not Sure

Select the solutions to the equation

x² + 2x - 1 = 2

• x = 0.5

• x = -2.5

• x = -3

• x = 1

The equation f(x) = 0 has a solution of x = -1. Which graph best represents f(x)?

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• 
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Identify the straight line you would have to draw in order to use the quadratic graph y = x²−4 to solve the equation x²−x −12 = 0

• y = x + 8

• y = 2x - 5

• y = x - 8

• y = 2x + 5

The graph of y = x² + 6x + 5 is shown.

What are the values of x when

x² + 6x + 5 = 21?

• x = -8 and x = 2

• x = -6 and x = 0

• x = -5 and x = -1

• x = -7 and x = 1

How many solutions will the function have?
x² - 6x + 9 = 0

• Two Solutions
• One Solution
• No Real Solutions
• One Million Solutions!!!

Find the solutions for the following quadratic equation from the graph.

• None

• (-1,0) and (1,0)

• (0,0)

• (5,0) and (9,0)