Which graph represents the solution to the given system? y=4x+4 y=4x-3 If you can answer this without the answers that would be great... is will not upload...
Accepted Solution
A:
Hello Jessica!
Here's a little tip: Cancel out all of the options that do not have a line crossing the y-axis at positive 4 and a line crossing the y-axis at negative 3. That should narrow down the possible answer choices significantly.
Also take two points, and use the formula [tex] \frac{y^2 - y^1}{x^2 - x^1} [/tex] to find out the slope. If both of the lines slope are not 4 (hence m = 4 in the equation), then those are not the correct answers.
Using both of these tactics, you can solve the problem without visible graphing calculator.