Evaluating Equations with Two Variables

Match the following x coordinates to the y coordinates using the following formula:

y = 2 x + 3

• 7

• -2

• 3

• 2

• 5

• 0

• -1

• -1

• 1

• 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

complete the table

g

d

c

-2

2

-8

0

8

-4

4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The value in the table represent the equation y = x + 6

Complete the table to represent the values of x and y.

Move the correct answer to each box in the table. Each answer may be used more than once. Not all answers will be used.

e

d

a

25

30

18

13

4

16

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The sum of two numbers is -2.  The difference is -​ 12.  
Find the 2 numbers

​ ​ (a)   ​ (b)   ​

• 5

• -7

• 6

• -4

• 3

• -3

• 2

• -2

Tags

CCSS.8.EE.C.8C

Which of the following equations can be paired with 𝑥 + 2𝑦 = 8 to make a consistent and independent system of equations?

• −3𝑥 − 6𝑦 = −24

• 7𝑥 + 14𝑦 = −16

• 3𝑥 − 2𝑦 = 4

• 2𝑥 + 4𝑦 = 16

Tags

CCSS.8.EE.C.8B

Which of the following ordered pair satisfies the given system

• (7,4)

• (−7, −4)

• (7, −4)

• (−7, 4)

What is the value of 𝑘 in the system if (−2, −1) satisfies both equations in the system?

• −1 and 1

• −2 and 2

• −3 and 3

• −4 and 4

Jayda was tasked by her teacher to verify if the ordered pair (−1, 2) will satisfy to the system. Is her solution correct

• Yes, because she substituted the values of the variable x = 1and 𝑦 = -2.

• Yes, because she followed the process of evaluating the system of linear equations.

• No, because the point (-1, 2) is not a common point of the given system of linear equations in two variables.

• No, because she is supposed to make two false statements that makes a solution of the system of linear equations.

What system of linear equations in two variables is equivalent to  

• 
• 
• 
• 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What system of linear equations in two variables is the same as

• 
• 
• 
• 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6