Math Problem Statement
Solution
The equation given is . To interpret this:
-
Equation Analysis: This equation describes a cubic function. For each value of , the output is determined by cubing and subtracting 1.
-
Table of Values: The table provided shows the following pairs of values:
x & y \\ \hline 2 & 7 \\ 1 & 0 \\ 0 & -1 \\ -1 & -2 \\ -2 & -9 \\ \end{array}$$ These values are correct based on the equation: $$y = x^3 - 1$$ For example: - For $$x = 2$$: $$y = 2^3 - 1 = 8 - 1 = 7$$ - For $$x = 1$$: $$y = 1^3 - 1 = 1 - 1 = 0$$ - For $$x = 0$$: $$y = 0^3 - 1 = 0 - 1 = -1$$ - For $$x = -1$$: $$y = (-1)^3 - 1 = -1 - 1 = -2$$ - For $$x = -2$$: $$y = (-2)^3 - 1 = -8 - 1 = -9$$ -
Graphing the Function: The blank grid on the left can be used to plot the points from the table: You would mark these points on the grid and connect them to show the cubic curve.
-
Is this a function?: Yes, this is a function. Each value of corresponds to exactly one value of , meaning it passes the vertical line test (a vertical line would intersect the graph at only one point).
Would you like a more detailed explanation or help with graphing?
Additional Questions:
- What is the general shape of a cubic function on a graph?
- How does the vertical line test work to determine if something is a function?
- Can a function have the same output for different inputs?
- How would the graph of differ from ?
- What is the significance of the constant term in the equation ?
Tip:
When graphing cubic functions, note that they usually have an "S" shape, with one end going to positive infinity and the other to negative infinity.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Cubic functions
Graphing
Algebra
Formulas
y = x^3 - 1
Theorems
Vertical line test
Suitable Grade Level
Grades 9-12