2
practice testMultiple Choice

Practice Test

Question 2 • Mathematics 8

Which relation is a function of x ?

Answer
A
Image with description On a coordinate plane, the x axis ranges from negative 5 to 5 in increments of 1. The y axis ranges from negative 5 to 5 in increments of 1. A graph that resembles a sideways letter S starts at (negative 2 point 5 comma negative 5) and increases close to (negative 1 point 5 comma 4). From the same point to (0 comma negative 1) the graph decreases. From (0 comma negative 1) the graph increases to the top of the first quadrant.
B
Table with 2 columns and 5 rows.Row 1: Column 1, 'x'; Column 2, 'y' Row 2: Column 1, '0'; Column 2, '2' Row 3: Column 1, '0'; Column 2, 'negative 6' Row 4: Column 1, '0'; Column 2, '9' Row 5: Column 1, '0'; Column 2, '7'
C
x is equal to 3 y squared minus 7
D
start set open paren 1 comma 2 close paren comma open paren 7 comma 6 close paren comma open paren 3 comma 2 close paren comma open paren 1 comma 0 close paren times open paren 5 comma 6 close paren end set
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