Answer:
2
Step-by-step explanation:
The first graph does not represent the linear relationship, because the slope of the line connecting points (3,60) and (4,90) is
and the slope of the line connecting points (4,90) and (5,110) is
Since slopes differe, this is not linear relationship. Simply, if you connect all points on the graph, they will not lie on the same line.
Two next graphs represent the linear relationships, so they represent the llinear relationship.
Answer:
93.44
Step-by-step explanation:
I'm not sure this is correct, but I'm really sorry if it isn't! :(
Answer:
{-5, -2}
Step-by-step explanation:
In a case like this please use parentheses to remove ambiguities. If I were to take your "x+5/x+2" literally, I'd have to write x plus 5/x plus 2.
I suspect that you actually meant (x + 5) / (x + 2), and will start with that.
First of all, this function is not defined at x = -5 or at x = -2. Thus, -5 and -2 are critical points.
Secondly, there may be one or more critical points beyond this. To find out, we have to differentiate (x+5)/(x+2):
(x + 2)(1) - (x + 5)(1)
f '(x) = ------------------------------
(x + 2)
Here it's clear that x cannot = -2, which would cause division by zero.
Thus, our critical values are {-5, -2}.
