Unit 1 Review: 9/22/21

Identifying Parts of an Equation

100

Identify the VARIABLE(s):

5x+2y=19

x,y

200

Identify the COEFFICIENT(s):

5x+2y=19

5 and 2 

300

Identify the Constant(s):

5x+2y=19

19

400

Which of the following are algebraic equations? 

A) 3x+9=17

B) 15+5y

C) 20h+4k=231

D) 20+18=38

A) 3x+9=17

C) 20h+4k=231

500

Identify the TWO (2) COEFFICIENTS:

16y+x=20

16 and 1 

Vocabulary

100

The LETTER part of an equation that represents an unknown quantity. 

A) Constant

B) Coefficient

C) Variable

D) Algebraic Equation

C) Variable

200

The number that stands ALONE in an algebraic equation:

A) Constant

B) Coefficient

C) Variable

D) Algebraic Equation

A) Constant

300

The number WITH the variable that tells how many times to multiply the variable.

A) Constant

B) Coefficient

C) Variable

D) Algebraic Equation

B) Coefficient

400

The branch of math that deals with variables and solving for unknown quantities

A) Geometry

B) Chemistry

C) Algebra

C) Algebra

500

A number sentence that uses variables and equal signs to represent a situation in the real world.

A) Constant

B) Coefficient

C) Variable

D) Algebraic Equation

D) Algebraic Equation

Writing Linear Equations in Slope-Intercept Form

100

Write an equation in slope-intercept form (y=mx+b) of a line using the following information: 

m = 2

b = 3

2x + 3 = y

200

Write an equation in slope-intercept form (y=mx+b) of a line using the following information: 

m = -5

b = 10

-5x + 10 = y

300

Write an equation in slope-intercept form (y=mx+b) of a line using the following information: 

m = 21

b = - 5

21x - 5 = y

400

Write an equation in slope-intercept form (y=mx+b) of a line using the following information: 

slope = 4

y-intercept = 18

y = 4x + 18

500

Write an equation in slope-intercept form (y=mx+b) of a line using the following information: 

slope = -2

y-intercept = -1

-2x - 1 = y

Identify Slope & Point

100

y-2 = 3(x-1)

m=3  (1,2)

200

y-9 = -6(x-5)

m= -6  (5,9)

300

y-7 = 9(x-1)

m=9  (1,7)

400

y+12 = -10(x-20)

m= -10  (20,-12) 

500

y-4 = -1.5(x-2)

m=-1.5  (2,4)

Calculating Slope

100

What is the slope formula?

y2-y1/x2-x1 

200

Calculate the slope of the line that goes through the points:

(1,3) and (2, 10)

m=7

300

Calculate the slope of the line that goes through the points:

(3,6) and (5,12)

m=3

400

Calculate the slope of the line that goes through the points:

(-1,3) and (2, -6)

m = -3

500

Calculate the slope of the line that goes through the points:

(-5,3) and (-2, 15)

m = 4