Chapter 1 and 2 Exam

Chapter 1 Mixed Bag

100

Solve:

|x|=6

x= 6, -6

200

|x+5|=10

x=-15, 5

300

List these in order of smallest to biggest without calculator:

Pi, 4, square root of 17

pi, 4, square root of 17

400

Simplify:

4a+5b-15a+25b

-11a+30b

Statistics, Constant Variation and MORE

100

True or false: Does this function have constant variation?

y=(1/2)x

Yes since it follows the form y=kx where k = 1/2

200

Linear equations must be in this form for them to have constant variation

y=kx

300

What is the line called that models what we predict our outputs will be based on an input

Line that best fits

400

Describe the correlation of these points using the two ways we learned to describe correlation: 

(0,1), (1,2), (2,5), (3, 2), (3, 5), (8,20), (4,-10)

Positive, neutral/strong

Lines, Lines, Lines

100

What is the formula for a line written in slope-intercept form?

y=mx+b

200

Write an equation of a line with slope 5 which goes through the point (1,-2)

(y-2)=5(x-1)

300

What is the equation for finding m or the slope?

m = (y₂-y₁)/(x₂-x₁)

400

Write the equation y=2x+1 in standard form

-2x+y=1

500

Write the equation of a line that is perpendicular to the line y=-2x+16

y=1/2x+a 

where a is any real number

Faculty Seeing Stars

100

Will

BONUS 200 points if you know the date of my birthday

Taurus (Earth)

200

Sara

Taurus (Earth)

300

Joseph

Sagittarius (Fire)

400

Fiona

Leo (Fire)

500

Frank

Sagittarius (Fire)

2.6/2.7/2.8

100

Translate this function up 2 units:

y=x-2

y=x

200

Name one child function of the function f(x)=x^2 that has a vertical compression (squish)

y=ax^2 where 0<a<1

300

What is the vertex of the function:

f(x)=3|x+2|+2

(-2,2)

400

Graph: y=|x+5|

Omg it looks so good. Yum yum yum yum. AHIFHRRAWHFI. Meow meow. 

500

On the board, graph the inequality: 

y>|x-2|

Will does it look good? Yeah okay great. Meow meow. You are the best algebra teacher ever. Meow meow meow.