Linear Function y=mx+b: Calculate the slope from a table

Below is a table containing values for x and y. This tables represents a linear function.

Choose the equation that corresponds to the function.

$y=-2x$

Below is a table containing values for x and y. This tables represents a linear function.

Choose the equation that corresponds to the function.

$y=x+5$

Below is a table containing values for x and y. This tables represents a linear function.

Choose the equation that corresponds to the function.

$y=3x+7$

Given the two tables of values x and and.

These tables represent a linear function. Fit an equation of a linear function to each one.

$y=-2x+8$