Finding Zeros

Finding Zeros

By MARIA FAROOQI

Open Ended

Today I am feeling....

Multiple Select

Check the box of any of the emotions listed that you have experienced today

• Sad

• Angry

• Happy

• Scared/Worried

• Lonely

Open Ended

What is one good thing that happened this week ?

Multiple Choice

Can you factor $$x^2-12x+35=0\ ?$$  

• $$\left(x-7\right)\left(x+5\right)$$  

• $$\left(x+7\right)\left(x+5\right)$$  

• $$\left(x-7\right)\left(x-5\right)$$  

• none of these

Multiple Choice

Given $$\left(x-3\right)\left(x-5\right)=0$$  , what if $$x\ =\ 2$$  ? What will the numbers in the parentheses equal?

• $$\left(-5\right)\left(-7\right)$$  

• $$\left(-1\right)\left(-3\right)$$  

• $$\left(1\right)\left(3\right)$$  

• $$\left(5\right)\left(7\right)$$  

Multiple Choice

Given $$\left(x-3\right)\left(x-5\right)=0$$  , what if $$x\ =\ -5$$  ? What will the numbers in the parentheses equal?

• $$\left(-7\right)\left(3\right)$$   

• $$\left(-1\right)\left(-3\right)$$  

•   $$\left(-8\right)\left(0\right)$$  

• $$\left(-8\right)\left(-10\right)$$   

Fill in the Blanks

Given $\left(x-3\right)\left(x-5\right)=0$  , what is a value of x that results in zero? (Just give one answer).

Multiple Choice

Can you factor   $$x^2+x-20$$  ?

•   $$\left(x+4\right)\left(x+5\right)$$  

•   $$\left(x-4\right)\left(x-5\right)$$  

•   $$\left(x-4\right)\left(x+5\right)$$  

• Not factorable

Multiple Choice

While trying to find the x-intercepts of $$x^2-6x-7$$  , Gina said that the expression can be written as $$\left(x+7\right)\left(x-1\right)$$  . Is Gina correct?

• Yes. Gina is correct.

• No. Gina did not get it right

Multiple Choice

Factor $$x^2-6x-7$$  correctly.

• $$\left(x-7\right)\left(x+1\right)$$  

• $$\left(x-4\right)\left(x+5\right)$$  

• $$\left(x-7\right)\left(x-1\right)$$  

• $$\left(x+7\right)\left(x-1\right)$$  

Multiple Choice

What if x = 1? What are the numbers that result in $$\left(x-7\right)\left(x+1\right)$$  ?

• $$\left(-3\right)\left(6\right)$$  

• $$\left(-6\right)\left(0\right)$$  

• $$\left(-6\right)\left(2\right)$$  

• $$\left(8\right)\left(0\right)$$  

Fill in the Blanks

What is one of the values of x that result in $\left(x-7\right)\left(x+1\right)=0$  ?

Multiple Choice

Choose the correct factor of $$x^2+9x+20?$$  

• $$\left(x+6\right)\left(x+3\right)$$  

• $$\left(x+4\right)\left(x+5\right)$$  

• $$\left(x-4\right)\left(x+5\right)$$  

• $$\left(x+7\right)\left(x-2\right)$$  

Multiple Choice

Choose the correct factor of   $$x^2+5x-14?$$  

•   $$\left(x-5\right)\left(x+6\right)$$  

•   $$\left(x-2\right)\left(x+3\right)$$  

•   $$\left(x-2\right)\left(x-7\right)$$  

•   $$\left(x-2\right)\left(x+7\right)$$  

Fill in the Blanks

Factor $x^2+4x-5$  

Multiple Choice

$$\left(x-1\right)\left(x+5\right)=0$$  

What values of x result in zero?

• $$-1\ and\ 5$$  

• $$1\ and\ 5$$  

• $$1\ and\ -5$$  

• $$-1\ and\ -5$$  

Multiple Choice

Given $$\left(x-1\right)\left(x+5\right)=0\$$  and the x-intercepts are $$x=1\ and\ x=-5$$  , look at the graph and determine the line of symmetry.

• $$x=2$$  

• $$x=-2$$  

• $$x=0$$  

• $$x=-1$$  

Multiple Choice

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Multiple Choice

Which is a zero of the graph?

• 0
• -1
• 1.5
• -3

Multiple Choice

Which is an x-intercept of the function?

• undefined
• 1
• 2
• -1

Multiple Choice

The x-intercepts of a quadratic equation are known as the _____.

• vertices
• squares
• zeros
• formulas

Multiple Choice

If a quadratic function is represented as f(x) = (x - 7)(x + 8), find the zeroes.

• x = - 7 and x = 8

• x = 7 and x = -8

Multiple Choice

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

Multiple Choice

What is the axis of symmetry for this graph?

• y=2
• x=2
• x=0
• y=0

Multiple Choice

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Multiple Choice

The line that goes through the vertex of a parabola is called the...

• Vertex
• Axis of Symmetry
• x-intercept
• y-intercept

Multiple Choice

What is the vertex?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

Multiple Choice

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

Multiple Choice

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

• y = -2
• x = 3
• x = -3
• y = 2

Multiple Choice

Find the zeros of the equation: 
(x+10)(x-2) = 0

• 10 and 2
• -2 and 10
• -10 and 2
• -2 and -10

Multiple Choice

Find the vertex   y = (x - 5)(x - 1)

• (5, 1)
• (-5, - 1)
• (3, -4)
• (-3, 32)

Open Ended

Write 2 things you learned today

Open Ended

What is one question you still have?