+31 a. The positive parts are -6
b. The negative parts are -3
c.It is increasing at -8
d. decreasing at 4
e. The constant part is x<-6
f.The domain of the function is x<=13. The range of the function is -9<=y<=7.
+31 a. when x = (-6, -3) and (3,13)
b. when x = (\(-\infty\), -6) and (-3,3)
c. when x= (0,4) and (-8, -4)
d. when x = (4,13) and (-4,0)
e. when x =(\(-\infty\),-8)
f.the domain is when x = (\(-\infty \),13) and the range is when y = (-9,7)
So for e., would the graph be constant over the interval of (-∞, -7)? I thought maybe you made a mistake there ;)
+31 i don't think i made a mistake there.... check the graph again....
+118687 Imheretosavetheday,
Guest has no idea what you are on about. Maybe s/he did eventually work it out but you did not explain.
You have not even tried to teach guest a solitary thing!
Guest.
The graph is positive when the y value is positive, I mean the graph must be above the x axis.
You could change the wording to : "For what values of x will the function (graph) be positive."
YOU only refer to the x values.
so
since it is above the x axis (where y is positive) between -6 and -3 and then again for all values of x greater than +3
I can say
The graph is positve from (-6,-3) and (+3, +infinity)
You use ( or ) if the end point IS NOT included
and you use [ or ] if the end point IS included.
