Linear Equations in Two Variables: Practice 2

Section A: Core Practice

Question 1mcq

The equations

x+y=8

and

x-y=2

are solved together. What is the value of

x

?

A.

6

B.

3

C.

5

D.

4

Question 2mcq

Which ordered pair satisfies the equation

2x+y=9

?

A.

(2,4)

B.

(3,3)

C.

(5,1)

D.

(1,5)

Question 3mcq

What is the value of

2x^{2}-3x+1

when

x=2

?

A.

3

B.

-1

C.

15

D.

5

Question 4mcq

Solve the equation

2x+6=12

.

A.

12

B.

2

C.

4

D.

3

Question 5mcq

The equations

x+y=8

and

x-y=2

are solved together. What is the value of

x

?

A.

6

B.

3

C.

5

D.

4

Section B: Application Practice

Question 6mcq

Which ordered pair satisfies the equation

2x+y=9

?

A.

(2,4)

B.

(3,3)

C.

(5,1)

D.

(1,5)

Question 7mcq

For the line

y=3x-1

, what are the slope and

y

-intercept?

A.Slope

3

, y-intercept

-1

.

B.Slope

-1

, y-intercept

3

.

C.Slope

3x

, y-intercept

0

.

D.Slope

2

, y-intercept

-1

.

Question 8mcq

Solve the equation

2x+7=13

.

A.

13

B.

2

C.

4

D.

3

Question 9mcq

The equations

x+y=8

and

x-y=2

are solved together. What is the value of

x

?

A.

6

B.

3

C.

5

D.

4

Question 10mcq

What is the value of

2x^{2}-3x+1

when

x=4

?

A.

-3

B.

21

C.

45

D.

23