Solving System of Equations

Which of the following equations would not contain the point ( 4 , 12 )?

• y = (3/4)x + 9

• y = (-1/2)x + 14

• y = (1/2)x + 8

• y = -2x + 20

The equation y = -7x - 5 and another equation have a solution of ( - 2 , 9 ) . Which of the following could be the second equation?

• y = (1/2)x + 10

• y = (-1/2)x + 7

• y = 3x - 3

• y = 2x + 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The graph shows the system of which two equations?

• y = x - 18 and y = x + 4

• y = - x + 18 and y = (4/3)x + 4

• y = 18x and y = 4x

• y = - x + 18 and y = (3/4)x + 4

Tags

CCSS.8.EE.C.8B

Solve the system of equations by graphing:

y = (2/3)x - 2

y = -4

• ( - 3, - 4 )

• ( - 4 , - 3 )

• ( 3 , 4 )

• ( 4 , 3 )

Tags

CCSS.8.EE.C.8B

Solve the System of equations by graphing

y = 2x

x + y = - 6

• ( - 2 , - 4 )

• ( - 4 , - 2 )

• ( 2 , 4 )

• ( 4 , 2 )

Tags

CCSS.HSA.REI.C.7

Which System of equations would have no solution?

• x + y = 4 and y = -x + 4

• y = 3x +2 and y = -3x - 2

• 2x + y = 10 and y = -2x + 10

• 3x + y = 8 and 3x + y = 9

Tags

CCSS.8.EE.C.8B

Which of the following statements is not true about the graph of a system of equations with infinitely many solutions?

• the lines will have the same slope

• The lines will have one positive y -intercept and one negative y-intercept

• the lines will have the same y-intercept.

• the lines will share all of the same points.

Tags

CCSS.8.EE.C.8A

Which is a true statement about the system of equations graphed below?

• the system of equations does not have a solution because the ones do no not intersect

• The system of equations has one solution, although it is not visible on the graph

• The system of equations has an infinite number of solutions

• None of the statements above are true.

Tags

CCSS.8.EE.C.8B

At a concession stand, a pickle and two bags of chips cost a total of $3.25. Three pickles and four bags of chicps cost a total of $7.25. To determine the cost of one pickle, Keven is writing a system of equation. His first equation is: x + 2y = 3.25

Which of the following could be the second equation in his system of equations?

• 3x + 4y = 7.25

• 4x + 3y = 7.25

• 3x - 4y = 7.25

• (3 + 4)x = 7.25

Tags

CCSS.8.EE.C.8C