Algebra 1 A.2i System of Equations

How many solutions will this system have? 

• No solution

• One Solution

• I Don't Know

• Infinitely Many Solutions

Solve for x and y
2x − 3y = −1
 y = x − 1

• (-2,-3)

• (0,-1)

• (3,4)

• (4,3)

There are 15 animals in a barn.  These animals are horses and chickens.  There are 44 legs in all.  Which system of equations represents the situation?

• x + y = 15
  4x + 2y = 44

• 4x + 2y = 15
  x + y = 44

• x = 2y + 44
  4x = y + 15

• 2x - 4y = 44
  x - y = 15

Steffen graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-3,-8)

• (-8,-3)

• (3,-8)

• (8,3)

The tables of ordered pairs represent some points on the graphs of two lines. Which systems of equations is represented by the two lines?

• y = 5x - 7

  4x - y = 4

• y = 5x - 7

  4x + y = 12

• y = 7x - 9

  4x - y = 4

• y = 7x - 9

  4x + y = 12

The tables of ordered pairs represent some points on the graphs of two lines. Which systems of equations is represented by the two lines?

• y = 5x - 7

  4x - y = 4

• y = 5x - 7

  4x + y = 12

• y = 7x - 9

  4x - y = 4

• y = 7x - 9

  4x + y = 12

The tables of ordered pairs represent some points on the graphs of lines f and g.

Which system of equations represents lines f and g?

• y = 1.75x + 3.5

  y = -4x - 8

• y = 1.75x + 3.5

  y = -4x - 2

• y = 3.5x + 1.75

  y = -4x - 8

• y = 3.5x + 1.75

  y = -4x - 2

Tags

A.2I

Which system of equations represents lines f and g?

• y = 1.75x + 3.5

  y = -4x - 8

• y = 1.75x + 3.5

  y = -4x - 2

• y = 3.5x + 1.75

  y = -4x - 8

• y = 3.5x + 1.75

  y = -4x - 2

Tags

A.2I

Erin is 3 years younger than twice Alex's age. Their ages combined are 33 years. How old are Alex and Erin. If x=Erin's age and y=Alex's age, choose the system that matches the situation.

• x + y = 33
  y = 2x - 3

• x + y = 33
  x = 2y - 3

• x + y = 33
  x = 3 - 2y

• x + y = 3
  x = 33 - 2y

what is the value of y in the system

• y=3

• y=-1

• y=-4

• y=2