Graphing Quadratics Homework

What the correct form for standard form of a quadratic function?

• $f\left(x\right)=ax^2+bx+c$

• $Ax+By=C$

• $f\left(x\right)=a\left(x-h\right)^2+k$

• $f\left(x\right)=\left(x-a\right)\left(x-b\right)$

Which coefficient in the standard form of a quadratic tells you whether the quadratic opens upward or downward?

• d

• c

• b

• a

Tags

CCSS.HSF-IF.C.7A

Which direction would the parabola of the following quadratic function open towards?

 $f\left(x\right)=3x^2-5x-7$  

• Opens downward

• Opens to the right

• Opens upward

• Opens to the left

Tags

CCSS.HSF-IF.C.7A

Does the following quadratic have a maximum or minimum value?

 $y=-2x^2-8x+10$  

• Maximum

• Minimum

• IDK

• I should have done my homework

Which formula is correct for finding the x coordinate of the vertex (axis of symmetry)?

• $h\ =\ \frac{b}{2a}$

• $h=\frac{2a}{b}$

• $h=-\frac{2a}{b}$

• $h=-\frac{b}{2a}$

What is the axis of symmetry?

• the slope of the graph
• the dividing line for a parabola
• a way to spin my pencil
• the x-axis

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution

Tags

CCSS.HSF-IF.C.7A

.How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.HSF-IF.C.7A

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

Tags

CCSS.HSF-IF.C.7A