Partial 2 Review

Linear Inequalities

100

Which of these inequalities is non-inclusive?

A) x < 5

B) 7 ≥ z

A) x < 5

200

Mario is trying to solve this inequality: 

3(4 - x) + 3x < 5

after solving it he ended up with 12 < 15

What would he need to write as an answer?

All real numbers are solutions

300

Write the following as an inequality:

W is less than 9 and greater than or equal to -8

-8 ≤ W < 9

400

Solve the following inequality: 

8 + ½ x < 2

x<−12

500

B and C are Sets of real numbers defines as follows:

B= (x | x> 4)

C= (x | x ≥ 6)

Write B U C

(4 , ∞ )

Quadratic Equations

100

In a quadratic equation, which factoring method will always work no matter the case?

Quadratic (General) Formula

200

Solve for x

x²=25

x=+5, -5

300

Write in terms of i

-√−49

-7i

400

In order to complete the square of the following equation, what number will you have to add?

    x² - 16x + 49

64

500

Solve for y

9y² = 30y-25

y= ⁵⁄₃

Quadratic Functions

100

What would be the concavity for the parabola of the equation?

      2x² - 5x - 12

Positive

200

What would be the axis of symmetry of the equation

y= 3 (x+5)²-1

x= - 5

300

Choose the parabola with the narrowest graph

A) -5x²

B) ½ x²

C) ⅔ x²

D) 3 x²

A) -5x²

400

Rewrite the equation f(x)=2 (x-2)²-5 in standard form

 f(x)=2x²-8x+3

500

Find the x-intercept(s) of the following equation: y=x²+2x-24

(-6,0) and (4,0)

Quadratic Inequalities (and systems)

100

Which of the following is not a substitution method?

A. Elimination

B. Substitution

C. Factoring

D. Graphing

C. Factoring

200

What is the least accurate method for solving a system of equations?

Graphing method

300

If I am graphing an inequality, When do I graph a pointed line?

In a non-inclusive inequality

400

Karen is solving her math exam and she needs to answer the following question:

Find the solutions for the system:

y= -4x-4

y=x²

She answered x= -2 and she got only half a point. 

Why? Help her get the full point by completing the answer

x=-2    y = 4   or (-2,4)

500

Solve the following system of equations

y= x²

y= -8x-15

​​​

(−3,9) and (−5,25)

General Knowledge

100

Who sings the song "Blank Space"

Taylor Swift

200

Muhammed Ali is famous for which sport?

Boxing

300

The yen is the currency of which country?

Japan

400

Who was the president of Mexico before Enrique Peña Nieto?

Felipe Calderon

500

When is the foundation of Monterrey celebrated?

September 20th