00:01
All right, so we need definitions for each one of these.
00:06
And you could probably search google for what is an equation or what is a ratio.
00:13
And that would probably give a pretty good answer.
00:16
But when i think about an equation, it is a relation of two quantities that are equal.
00:32
So if i have over here 7x, and on the other side i have 84, and we want to say that those are equal, or that there's an equation, we then add in an equal sign, and now say that 7x is equal to 84, and we can then solve this.
00:55
Next, we've got linear versus quadratic.
00:58
Linear will have a degree that's at most one, and so it will have an x.
01:03
Quadratic will have a degree at most too, which means that it has an x squared somewhere in it, and nothing higher than that.
01:12
I bring in the degree because then that helps you with that second question, or the second part, this could have at most one real solution.
01:25
And then our quadratic has at most two real solutions, meaning two values.
01:36
For which the equation is true because we can always have equations that are not true seven does not equal three and there's nothing we can do to change that but when we have a set an equation they are equal let's see lineage one real solution quadratic is two differences one versus two in solutions all right i think i got all that.
02:11
Next we got a rate, which is a comparison of two quantities.
02:25
The most common rate that i can think of is miles per hour.
02:31
How fast are you going? it's a comparison of miles and hours or speed and distance...