Question

the slope of the function y= 20x + 5 is?

Answer 1

see http://www.mathwarehouse.com/algebra/linear_equation/slope-intercept-form.php
scroll down to "Formula"

Answer 2

slope is 20 units

Answer 3

two ways to solve this
1) the standard form of equation of a line is y=mx+b
where m is the slope
by comparing the standard form with the given equation
we see that the slope = 20 units

2)differentiate the equation with respect to x to obtain the slope
dy/dx = d/dx(20x) +d/dx(5)
dy/dx = 20