Answer:
D
Step-by-step explanation:
The slope m is a measure of rate.
The equation of a line in slop- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
The given equations are all in this form, thus
A has m = [tex]\frac{1}{2}[/tex]
B has m = 2
C has m = 4
D has m = 7 ← greatest rate
Thus y = 7x + 5 is the equation with the greatest rate