graphing proportional relationships

In the ordered pair

 $\left(5,2\right)$  what does the "2" represent?

• The x-value

• The y-value

• The answer

Answer explanation

The second number is ALWAYS the y-value

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which variable is represented by the horizontal axis?

• x

• y

• z

• The origin

Answer explanation

x is the horizontal axis, y is the vertical axis.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The "Origin" is another name for which ordered pair?

• (1, 0)

• (0, 1)

• (0, 0)

• (1, 1)

Answer explanation

The Origin is where the two number lines cross, when each has a value of 0. So (0, 0)

Tags

CCSS.8.EE.B.6

Will the graph of a proportional relationship go through the origin?

• Always

• Sometimes

• Never

Answer explanation

Proportional graphs ALWAYS pass through or start at the origin.

Tags

CCSS.8.EE.B.5

Will a Proportional Relationship graph as a curved line?

• Always

• Sometimes

• Never

Answer explanation

It will always be straight, never curved

Tags

CCSS.8.EE.B.5

Is this graph proportional?

• No, it passes through the origin

• No, it is a single straight line

• Yes, it passes through the origin and is a single straight line

Tags

CCSS.8.EE.B.5

What tells us this is not a proportional graph?

• We don't know what number it starts at.

• It does not start at the origin

• But it IS proportional!

Tags

CCSS.8.EE.B.5

Proportional?

• Yes

• No

Tags

CCSS.8.EE.B.5

Proportional?

• Yes,

• No, its facing the wrong way

Tags

CCSS.8.EE.B.5

The constant of proportionality is the same as...

• the origin

• the y-intercept

• the unit rate

Tags

CCSS.HSF-LE.A.1B