How do you graph the equation y=4x-1?

1 Answer
Nov 1, 2017

Passes through (1/4,0) and (0,-1)

Explanation:

Basically, this is a straight line in the form y=mx+b

Our gradient m is 4 which is positive, so our straight line slopes to the right

You need to solve the equation to see where your line crosses the x and y axis.

  • To find y is easy
    Let x=0
    so y=4(0)-1
    Giving us y=-1
    So now we know our graph passes through y=-1
  • For x we use a similar process
    Let y=0
    So we get 4x-1=0
    Hence, x=1/4

So now we know our graph passes through x=1/4 and y=-1 and has a positive gradient. So we can draw it. graph{y=4x-1 [-5, 5, -2.5, 2.5]}