# How do you graph the equation #y=4x-2#?

##### 1 Answer

May 20, 2017

The general equation for a line is

#y# is the dependent variable (dependent on#x# ).#m = (y_2 - y_1)/(x_2 - x_1)# is the slope.#x# is the independent variable.#b# is the y-intercept.

Match that up to the general form:

#y = 4x - 2#

#=> m = 4#

#=> b = -2#

This means the slope describes an increase in

#m = (y_2 - y_1)/(x_2 - x_1) = 4/1#

This also means that the graph crosses the

#(0,-2)# is a point on the graph.- Applying the slope onto
#(0,-2)# , we get that#(0+1,-2+4) = (1,2)# is another point on the graph.

Two points make a line, so you have your graph:

graph{4x - 2 [-10, 10, -5, 5]}

And you should spot where