Quadratic Functions Pre-Assessment

Which of the following strategies can be used to find the x-intercepts/solutions of a quadratic function?

• On a multiview calculator: press "table" and type in the equation , press "enter" 5 times, and scroll up or down the table to find the value(s) where y = 0

• By hand: set the quadratic equation equal to zero and solve using 1 of the methods we have learned in class (the Square Root Method, Factoring, or the Quadratic Formula)

• Visually: find the point(s) where the graph touches or crosses the x-axis.

• All of these strategies are valid.

Does the quadratic have a max/min vertex, and does the graph open up/down?

• max/ opens down

• min/ opens up

• max/ opens up

• min/ opens down

Tags

CCSS.HSF-IF.C.7A

What is the vertex?

• (0, - 1)

• (0, 0.5)

• (-1, 0)

• (0.5, 0)

Find the axis of symmetry for the graph

• x = -1

• x = 1

• x = 3

• x = -1 , 3

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

y = x² - 4x + 5

• down and down

• down and up

• up and down

• up and up

Tags

CCSS.HSF-IF.C.7A

f(x) = (a)   x² + ​​ (b)   x + ​ ​ (c)  

• a

• b

• c

• d

• x

• 1

• 3

• 2

• 5