-8x+2y=6   Question 1

-8x+2y=24             -6x-2y=12          question 2

                             0.5x +0.5y=-24

in TI-84 Plus Programs by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

You need to put these in slope intercept form first. y=mx+b

So solve for y

-8x+2y=6

add 8x to both sides

2y=8x+6

divide by 2

y=4x+3

-8x+2y=24

and 8x to both sides

2y=8x+24

divide both sides by 2

y=4x+14

Now put those two equations into your y= screen.  Press the y= button of course on the top left of the calculator.

enter the equations, one on each line.

In this case you will come up with a graph that looks like this:

Graph of the lines y=14+14 and y=4x+3 on a Graphing Calculator

The solution is where the lines cross. Since these two lines are parallel, (notice that both have a slope of 4x.) they never cross. There is no solution.

by
Welcome to the calculatorti.com Texas Instruments Graphing Calculator questions and answers page and calculator help forum, Help build our members by asking and answering questions on TI-83, TI-83 Plus, TI-84 Plus, TI-89, TI-89 Titanium or any other Texas Instruments graphing calculator model.
593 questions
186 answers
1 comment
22,297 users