The solution's something you can really easily pick up, I promise.
The solution is simply the point where the two lines connect.
In this case, it's (2,5). (x,y)
Hope this helped!
(Khan Academy is a great resource.)
Answer:
-3
Step-by-step explanation:
parallel lines always have the same slope, the y-intercepts will differ
It would be the points (0,80) and (15,10)
<span>Inflection points are where the function changes concavity. Since concave up corresponds to a positive second derivative and concave down corresponds to a negative second derivative, then when the function changes from concave up to concave down (or vise versa) the second derivative must equal zero at that point. So the second derivative must equal zero to be an inflection point. But don't get excited yet. You have to make sure that the concavity actually changes at that point.</span>
