Answer:
3
Explanation:
The slope of a line is the rate of change
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (2, 12 ) and (x₂, y₂ ) = (0, 4) ← 2 ordered pairs from the table
m =
=
= 4
y = 7x + 4 ← is in slope- intercept form
with slope m = 7
Difference between rates of change = 7 - 4 = 3