Quadratic Equations in Standard, Vertex and Intercept Form

If we have the equation y=ax²+bx+c, how can we can find the x-coordinate of the vertex?

• -a

• -b/a

• b/2a

• -b/2a

What is the vertex of this function?

• (-3, -4)

• (-4, -3)

• (0, 5)

• (-5, 0)

What are the x-intercepts of this function?

• (-5, 0) and (0, 5)

• (-5, 0) and (-1, 0)

• (0, -5) and (0, -1)

• (5, 0) and (1, 0)

Tags

CCSS.HSF-IF.C.7A

The graph of a quadratic function is shown. The vertex and two points are labeled. Drag and drop the numbers and operations to write the equation for the parabola in vertex form. y = ​ (a)   (x​​ (b)   (c)   )² - (d)  

• -

• 1

• 6

• 12

• 4

• 8

• +

The graph of a quadratic function is shown. The vertex and two points are labeled. Drag and drop the numbers and operations to write the equation for the parabola in vertex form. y = ​ (a)   (x​​ (b)   (c)   )² - (d)  

• -

• 1

• 6

• 12

• 4

• 8

• +

Identify the vertex and whether the graph opens up or down. (a)  

• (5, 2); opens up

• (5, 2); opens down

• (-5, 2); opens up

• (-5, 2); opens down

Which of the following is the correct equation for the given graph? (a)  

• f(x) = -(x + 2)2 - 4

• f(x) = -(x - 2)2 - 4

• f(x) = -3(x - 2)2 - 4

• f(x) = -3(x + 2)2 - 4

Tags

CCSS.HSF-IF.C.7A

• 1/4
• -1/4
• 4
• -
• +
• 2
• -2

Mathematical Equivalence

OFF

What is the equation of the graph (2 correct answers)?​ ​ trinomialvertex form

Tags

CCSS.HSF-IF.C.7A