8th Math - Unit 4 (Part II) Question Preview (ID: 58302)


Unit 4! TEACHERS: click here for quick copy question ID numbers.

y = x + 4
a) (2, 6)
b) (2, -2)
c) (7, 10)
d) (7, 3)

y = 3x
a) (-4, 12)
b) (4, -12)
c) (0, 1)
d) (1, 0)

y = x - 9
a) (10, 1)
b) (1, 10)
c) (5, 4)
d) (-5, -4)

y = x/2
a) (2, 1)
b) (1, 2)
c) (3, 2)
d) (2, 3)

y = x + 5
a) (17, 22)
b) (22, 17)
c) (16, 20)
d) (20, 16)

y = x - 6
a) (-4, -10)
b) (-10, -4)
c) (-2, 8)
d) (8, -2)

y = 2x + 5
a) (0, 5)
b) (5, 0)
c) (-3, 1)
d) (1, -3)

y = 3x - 1
a) (-9, -28)
b) (-28, -9)
c) (-2, 5)
d) (5, -2)

X-coordinates can also be called:
a) inputs
b) outputs
c) ###
d) ####

The y-value is also known as:
a) the dependent variable
b) the independent vairable
c) ###
d) ####

If your pencil touches two or more points during the Vertical Line Test:
a) it is NOT a function
b) it is a function
c) ###
d) ####

If your pencil only touches one point during the Vertical Line Test:
a) it is a function
b) it is NOT a function
c) ###
d) ####

(0, 1) (1, 0) (-2, -4) (-4, -2)
a) YES... it is a function
b) NO... it is NOT a function
c) ###
d) ####

(7, -6) (-5, -100) (-3, 97) (7, 6)
a) NO... it is NOT a function
b) YES... it is a function
c) ###
d) ####

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