+0

# I need help!

0
256
7

Please help me with the questions according to the graph given:

Mar 23, 2019

#1
+31
0

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.

Mar 23, 2019
#2
0

Can you provide the intervals as coordinates with parenthesis? For example an interval of (-2,0)

Guest Mar 23, 2019
#3
+31
0

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)

Mar 23, 2019
#4
0

So for e., would the graph be constant over the interval of (-∞, -7)? I thought maybe you made a mistake there ;)

Guest Mar 23, 2019
#5
+31
0

i don't think i made a mistake there.... check the graph again....

imheretosavetheday  Mar 23, 2019
#6
+1

Ohhh I see. Your answers r going by only x values. I thought your answers included y values in the intervals also.

Guest Mar 23, 2019
#7
+110153
+1

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.

Mar 24, 2019
edited by Melody  Mar 24, 2019