I am starting all over on Math, after many years, and I'm having trouble with a question that was given to the class. I have read it a few times and it is not clicking with me yet. Is there anyone that can explain it in a simpler way, so that I can grasp it. Thank you.
Consider this equation, y= ax + b. When you are given an actual linear equation, you're almost always given something where the a and b have been replaced with actual numbers so you typically see equations like y=3x+2 and so on. The x and y are pretty much always there to taunt you so here are 3 questions to answer based on this and to get you rooted in graphing linear equations:
1) How can you choose x values to plug into a linear equation, like y=3x+2, so that you can graph it?
2) Related to 1), what if I told you that x is the independent variable and y is the dependent variable? How could you explain those definitions to someone else (knowing what you generally know about the terms independent (skate punk) and dependent (lives with mom still))?
3) The book tells us about two points that you can plot for a linear equation called the intercepts. What can you glean from the two points they give you in that paragraph (for Example 2) that will always help you solve for the intercepts? It has to do with the one value those two points have in common...