5. Ratio & Proportion

The ratio of $x:y$`x`:`y` is $1:2$1:2 and is represented in the table of values below.

$x$x |
$3$3 | $4$4 | $5$5 | $6$6 |
---|---|---|---|---|

$y$y |
$6$6 | $8$8 | $10$10 | $12$12 |

a

We want to plot the points from the table of values. First plot the point $\left(3,6\right)$(3,6) on the plane.

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b

Plot the point $\left(4,8\right)$(4,8) on the plane.

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c

Plot the point $\left(5,10\right)$(5,10) on the plane.

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d

Plot the point $\left(6,12\right)$(6,12) on the plane.

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Easy

Approx 2 minutes

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Recognize and represent proportional relationships between quantities.

d. Explain what a point (x, y) on the graph of a proportional relationship means in terms of the situation, with special attention to the points (0, 0) and (1, r) where r is the unit rate