Sample practice questions help needed

label Calculus
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Aug 21st, 2015

Part a.

To determine the graph or to plot the graph you just need to use your function

Select three points of x in random eg  1 2 3

Use your equation to determine the corresponding values of y

eg when x = 1

y=-5(1)^3= -5

Do the same for the other points. Then check to see which graph will fulfill the above points.

part b

The graph is symmetric about the origin because every point on the right hand side is reflected on the left hand side and vice versa about the origin(0, 0)

Part c

To determine the increament or decreament value or interval. You look at the appearance of the graph.

Aug 21st, 2015

Let me explain part c better

Aug 21st, 2015

thanks

Aug 21st, 2015

We use the x values to determine if the graph is increasing or decreasing.

the graph is increasing  from point -infinity  towards infinity

graph is decreasing  from point infinity   towards -infinity

The graph is decreasing on the interval (infinity) U (-infinity) and increasing on the interval (-infinity) U (infinity)

Aug 21st, 2015

You can read more here for better understanding of part C

Aug 21st, 2015

Hope everything is clear now. If not you are free to ask for clarifications

Aug 21st, 2015

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Aug 21st, 2015
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Aug 21st, 2015
Nov 25th, 2017
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