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CanadaON
Grade 9

6.05 Proportional relationships

Interactive practice questions

Consider the values in each table. Which of them could represent a directly proportional relationship between $x$x and $y$y?

$x$x $1$1 $3$3 $5$5 $7$7
$y$y $20$20 $16$16 $12$12 $8$8
A
$x$x $1$1 $5$5 $6$6 $20$20
$y$y $16$16 $12$12 $8$8 $4$4
B
$x$x $1$1 $2$2 $3$3 $4$4
$y$y $2$2 $8$8 $18$18 $32$32
C
$x$x $1$1 $2$2 $3$3 $4$4
$y$y $2$2 $4$4 $6$6 $8$8
D
Easy
< 1min

Which two of the following graphs indicate that $y$y is directly proportional to $x$x?

Easy
< 1min

Given that $y=2x$y=2x, find the missing values in the table.

Easy
< 1min

Find the equation relating $r$r and $n$n given the table of values.

Easy
1min
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Outcomes

9.B3.5

Pose and solve problems involving rates, percentages, and proportions in various contexts, including contexts connected to real-life applications of data, measurement, geometry, linear relations, and financial literacy.

9.C3.1

Compare the shapes of graphs of linear and non-linear relations to describe their rates of change, to make connections to growing and shrinking patterns, and to make predictions.

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