SOLUTION: Please Help!!!! the directions are to find the x-intercept and y-intercept of each equation. then graph the equation. y=4x-2 please help me....

Algebra ->  Linear-equations -> SOLUTION: Please Help!!!! the directions are to find the x-intercept and y-intercept of each equation. then graph the equation. y=4x-2 please help me....      Log On


   

Question 154404: Please Help!!!!
the directions are to find the x-intercept and y-intercept of each equation. then graph the equation.
y=4x-2
please help me....
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

X-Intercept




To find the x-intercept, plug in y=0 and solve for x


y=4x-2 Start with the given equation.


0=4x-2 Plug in y=0.


2=4x Add 2 to both sides.


%282%29%2F%284%29=x Divide both sides by 4 to isolate x.


1%2F2=x Reduce.


So when y=0 then x=1%2F2


This means that the x-intercept is .


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Y-Intercept




To find the y-intercept, plug in x=0 and solve for y


y=4x-2 Start with the given equation.


y=4%280%29-2 Plug in x=0.


y=0-2 Multiply 4 and 0 to get 0.


y=-2 Subtract



So when x=0 then y=-2




This means that the y-intercept is .



Now graph the x and y intercepts as points in a coordinate system:



Graph of the x-intercept and the y-intercept .



Now draw a line through the two points to graph y=4x-2


Graph of y=4x-2