Math 8 Unit 9 Systems Of Equations Review Question Preview (ID: 42521)


Solving Systems Of Equations. TEACHERS: click here for quick copy question ID numbers.

Solve: x + y = 12 and -3x + 7y = 14
a) (7, 5)
b) (7, -5)
c) (5, -7)
d) (-7, 5)

How would you describe the relationship between ths lines? y = 2x - 8 and y = -1/2x + 4
a) parallel
b) perpendicular
c) coincident
d) skew

How would you describe the relationship between ths lines? y = 3x - 19 and y = 3x + 7
a) parallel
b) perpendicular
c) coincident
d) skew

How many solutions does this system have? -10x + 8y = -1 and 5x - 4y = -9
a) 0 solutions
b) 1 solution
c) infinite solutions
d) not possible

How many solutions does this system have? 2x - 3y = -5 and -4x + 6y = 10
a) 0 solutions
b) 1 solution
c) infinite solutions
d) not possible

Solve: y = 240 + 8x and y= 12x
a) (60, 720)
b) (70, 840)
c) (0, 0)
d) (20, 240)

How many solutions does this solution have? y = 4x + 12 and 3x - 3y = 18
a) 0 solutions
b) 1 solution
c) infinite solutions
d) not possible

Solve: 8x + 8y = -24 and x = -6y - 3
a) (0, -3)
b) (-3, 0)
c) (3, -3)
d) (-3, -3)

Solve: y = 6x + 19 and 4x + 4y = -8
a) (-3, -1)
b) (1, -3)
c) (3, 1)
d) (-3, 1)

Solve: x - 7y = -9 and -x + 8y = 10
a) (-2, -1)
b) (-2, 1)
c) (1, -2)
d) (2, 1)

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