Question

#3. Using the table of values, which equation represents the linear

function? *

х: -2, 0, 2, 4, 6
у: 1, -9, -19, -29, -39

O y = -x + 10
O y = 10x + 1
O y=-10x - 9
O y=-5x - 9

Answer 1

y = -5x + 9.

Explanation:

Lets look for the relation between x and y.

Try the first one:

When x = -2, y = -(-2) + 10 = 12

In the table y = 1 so its not this one.

Number 2:

x = -2, y = 10(-2) + 1 = -18 - Not thios one

Number 3:

When x = -2, y = -10(-2) - 9 = 11

Not this one

Number 4:

y = -5(-2) - 9 = 1

This is the one.

Check again with x = 0:

When x = 0, y = -5(0) - 9 = -9.