The table shows the volume of water in a tank after it has been filled to a certain height.
Which equation could represent the volume of water in cubic inches, V, when the height is h
inches?
height of water volume of water
(inches)
(cubic inches)
0
0
1
1.05
2
8.40
3
28.35

Respuesta :

Functions and tables can be used to model real world situations.

The equation that represents volume is: [tex]\mathbf{V(h) = 1.05(h)^3}[/tex]

From the table, we have:

[tex]\mathbf{h \to V}[/tex]

[tex]\mathbf{0 \to 0}[/tex]

[tex]\mathbf{1 \to 1.05}[/tex]

[tex]\mathbf{2 \to 8.40}[/tex]

[tex]\mathbf{3 \to 28.35}[/tex]

The table can be rewritten as:

[tex]\mathbf{h \to V}[/tex]

[tex]\mathbf{0 \to 1.05 \times 0^3}[/tex]

[tex]\mathbf{1 \to 1.05 \times 1^3}[/tex]

[tex]\mathbf{2 \to 1.05 \times 2^3}[/tex]

[tex]\mathbf{3 \to 1.05 \times 3^3}[/tex]

Replace 0, 1, 2 and 3 with h

[tex]\mathbf{h \to 1.05 \times h^3}[/tex]

The above expression means that:

[tex]\mathbf{V(h) = 1.05 \times h^3}[/tex]

Rewrite as:

[tex]\mathbf{V(h) = 1.05(h)^3}[/tex]

Hence, the equation that represents volume is: [tex]\mathbf{V(h) = 1.05(h)^3}[/tex]

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