QUICK REVIEW

What is the general form of a quadratic equation?

• f(x) = ax2 + bx + c

• f(x) = mx + c

• f(x) = x3

The "a" value in a quadratic equation is to ( ).

(You may choose more than one answer)

• Determine the shape of a graph

• Determine the position of axis of symmetry

• Determine y-intercept

• Determine the width of a graph

Choose the quadratic expressions.

• y² + y + 3

• 1/x² + 3x + 9

• m (5m + 8)

• 4xy² - y + 9

What the a, b and c value of the quadratic expression 15 - 4m + 9m²

• a = 9, b = - 4 , c = 15

• a = -4 , b = 9 , c = 15

• a = -4 , b = 15 , c = 9

• a = -15 , b = 9 , c = -4

If a > 0 (positive), what kind of point does it have?

• Minimum

• Maximum

Which of the following is TRUE about 2x² - x + 8?

(Can be more than 1 answer)

• Smiling graph

• The axis of symmetry is to the right

• y-intercept is 2

• It is more wider than x² - x + 8

Refer to the diagram.

• A. t < 0

• B. t < 2

• C. 0 < t < 2

• D. t > 2

Which of the following is TRUE about -3x² + 4x + 10?

(You may choose more than 1 answer)

• Value of c is 10

• Axis of symmetry is to the right

• Sad face

• Has minimum point

What is root?

• y-intercept

• x-intercept

Which of the following is TRUE?

• a > 0

  Minimum point

• a < 0 and b > 0,

  Axis of symmetry is to the right

• Value of c shows the width of the graph

• Highest power of a quadratic equation is 3