Cubic Graphs

This lesson covers:

  1. What 'cubic' graphs are
  2. How to recognise the equations for cubic graphs

Which of the following graphs is a cubic graph?

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Which of the following equations represents a cubic graph? 

y=3x−2
y=x3+5x2−2x+1
y=x2−2x+1

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Which of the graphs below shows y = x3?

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Find a and b to complete the table below for:

Table showing values for x and y for the cubic equation y equals x cubed plus x squared minus 3x minus 1 with missing values a and b.

a = , b =

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-1

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By sketching a grid like the one below, use the table of values to draw the graph of:

Table of values for the cubic graph y equals x cubed plus x squared minus 3x minus 1.

('Press 'Continue' to check your answer)

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