Alg. 2-Unit 4 Review

Select the Decreasing Interval for the following graph:

Tags

CCSS.HSF-IF.C.7A

What is the Range of the function?

Answer explanation

Range is always down to up and looks at the y-values.

Tags

CCSS.HSF-IF.C.7A

Select both options that complete the end behavior for the provided graph.

Tags

CCSS.HSF-IF.C.7A

What is the Range for the following graph?

Tags

CCSS.HSF.IF.B.5

CCSS.8.F.A.1

What is the Range for the following graph?

• (2, - infinity)

• (- infinity, 2]

• [7, - infinity)

• (- infinity, 7]

Tags

CCSS.HSF.IF.B.5

CCSS.8.F.A.1

Answer explanation

You should have gotten

3(4x-1)(2x+3)

Should have taken a GCF of 3 our fist, then done the trinomial to factor the rest.

Factor Completely

Hint: Your answer should be in the format:
​ ____(____x-____)(x-____)

Answer explanation

You should have gotten:

4(x-3)(x+3)(x^2+9)

You had to take out a GCF of 4 first to get 4(x^4-81)

Then factored using difference of perfect squares to get: 4(x^2-9)(x^2+9).

Then had to factor (x^2-9) even more to get a final answer of:

4(x-3)(x+3)(x^2+9). You can NOT factor x^2+9 because of the +.

Tags

CCSS.HSA.APR.C.4

Select ALL the points that are on the function

​ f(x)=2(x-1)(x+4)

• (1,0)

• (-1.5, -12.5)

• (-4,0)

• (4,0)

• (-1,0)

Answer explanation

Find the x-intercepts by looking at the equation. Then plug in the values into the equation to determine if the y-values match.

For the assessment make sure you can also graph the parabola based on your table.

Tags

CCSS.HSF-IF.C.7C

Select the equation that matches the given graph.

• 
• 
• 
• 

Answer explanation

You need to first find your x-intercepts. Those are p and q.

Then plug them into the equation y=a(x-p)(x-q). After that use the nice point (-2,-6) and plug in for x, y. Then solve for a. You should get 3/4

Then fill in a, p, and q.

Tags

CCSS.HSF-IF.C.7A