we have the equation
y=4x-1
Find the intercepts
step 1
y-intercept (value of y when the value of x is zero)
For x=0
y=4(0)-1
y=-1
y-intercept is (0,-1)
step 2
Find the x-intercept
Value of x when the value of y is zero
For y=0
0=4x-1
4x=1
x=1/4=0.25
x-intercept is (0.25,0)
therefore the graph is
see the attached figure