A graph has its horizontal axis labeled "Water temperature °C", ranging from $-5$−5 to $5$5. The vertical axis is labeled "Surface air temperature °C", ranging from $-5$−5 to $5$5. Both axes are marked with major tick marks at $2$2 units intervals and minor tick marks at $1$1 unit intervals. Seven points are plotted diagonally as solid dots on the graph. Starting from lower-left at $\left(-3,-4\right)$(−3,−4), move upward toward the upper right at $\left(-2,-3\right)$(−2,−3), $\left(-1,-2\right)$(−1,−2), $\left(0,-1\right)$(0,−1), $\left(1,0\right)$(1,0), $\left(2,1\right)$(2,1), and $\left(3,2\right)$(3,2). The coordinates of the points are not explicitly labeled nor given.

Complete the table of values:

Water Temperature (°C)	$-3$−3	$-2$−2	$-1$−1	$0$0	$1$1	$2$2	$3$3
Surface Air Temperature (°C)	$\editable{}$	$\editable{}$	$\editable{}$	$\editable{}$	$\editable{}$	$\editable{}$	$\editable{}$

Continue the pattern in the table to determine the surface air temperature when the water temperature is $4$4 °C.

What would be the surface air temperature when the water temperature is $14$14 °C?

Easy

3 min

$Justin$ is looking into the details of his mobile phone plan. He knows the costs for several call lengths.

Easy

8 min

Chirping crickets can be an excellent indication on how hot or cool it is outside. Different species of crickets have different chirping rates but for a particular species the following data was recorded.

Easy

4 min

Outcomes

NA5-9

Relate tables, graphs, and equations to linear and simple quadratic relationships found in number and spatial patterns.

Practical Linear Relationships

Interactive practice questions

Outcomes

NA5-9

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