Question

Identify the function to match the table.

A table with two columns. Left column is titled x and right column is titled y. First row shows x is negative four and y is one. Second row shows x is zero and y is two. Third row shows x is four and y is three. Fourth row shows x is eight and y is four.

y= 1/4 x -1
y= 1/4 x + 2
y= 1/2 x + 5
y= 1/2 x - 3

Answer 1

Substitute the values for x and see which ones work.

"First row shows x is negative four and y is one"

y= 1/4 (-4) -1 = -1-1 = -2
y= 1/4 (-4) + 2 = -1+2 = 1 <== Here's your winner.
y= 1/2 (-4) + 5 = -2+5 = 3
y= 1/2 (-4) - 3 = -2-3 = -5

"Second row shows x is zero and y is two"

See if the same one wins again!!