Quadratic Equation Intercept Form Quiz (IM2 3.5)

What is the intercept form of a quadratic equation?

How can you find the axis of symmetry in the intercept form of a quadratic equation?

• It is the average of the x-intercepts

• It is the sum of the x-intercepts

• It is the product of the x-intercepts

• It is the difference of the x-intercepts

Tags

CCSS.HSF-IF.C.7A

What are other terms for x-intercepts in a quadratic equation?

• Vertices

• Roots

• Solutions

• Coefficients

Tags

CCSS.HSF-IF.C.7D

What is the x-coordinate of the vertex in a parabola?

• The same as the axis of symmetry

• The same as the y-intercept

• The midpoint of the x-intercepts

• The maximum value of the function

The x-intercepts of the equation f(x) = 3(x - 1)(x + 7) are (a)   and (b)   .

• (0,1) and (0,-7)
• (1,0) and (-7,0)
• (3,0) and (-1,0)
• (0,3) and (0,-1)

Tags

CCSS.HSF-IF.C.7C

Match the following methods with their purpose in determining the axis of symmetry for a quadratic equation in intercept form.

• Method to find the vertex of the parabola

• Use the formula x = -b/2a

• Method involving the coefficients of the quadratic equation

• Use the vertex formula

• Method to find the axis of symmetry by averaging the roots

• Calculate the average of the x-intercepts

The vertex of the equation f(x) = 3(x - 1)(x + 7) is (a)  

• (-3, -48)
• (3, 48)
• (1, 0)
• (-7, 0)

The 'a' value in a parabola's equation tells you the (a)   of the parabola.

• The color of the parabola
• The direction and stretch of the pa
• The width of the parabola
• The height of the parabola

What is recommended to improve your skills with the intercept form (or any graphing)?

• Memorize the formula

• Practice regularly

• Avoid real-world problems

• Using DESMOS

Tags

CCSS.HSF-IF.C.7A

What should you try after mastering intercept form?

• Forgetting the intercept form

• Converting between different forms and solving real-world problems

• Only focusing on vertex form

• Ignoring quadratic functions