Checking and securing understanding of plotting coordinates generated from a rule | Maths

Starter quiz

This table of values tells us the ______ to plot the relationship $y=3x+4$ .

'coordinates' ✓
What is wrong with this plotting of the arithmetic sequence $2n−1$ ?

The coordinates are wrong.

The line should extend to the edges of the grid.

There shouldn't be a line through the points. ✓

The points should not line up.

You need more than $5$ term numbers.
Which of these arithmetic sequences could this graph represent?

$17−5n$ ✓

$5n−17$

$n−17$

$5−n$

$5−17n$
What are the two missing $y$ coordinate values for this linear rule?

$−1$ ✓

$−4$

$−5$

$−6$ ✓

$−9$
This is a table of values for a linear rule but there is an error. Which value is the error?

$y=26$

$y=19$

$y=5$

$y=−3$ ✓

$y=−16$
For the linear rule $y=13−2x$ what is the $y$ coordinate when $x=−5$ ?

$23$ ✓

$18$

$11$

$8$

$3$

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The plotted points of an arithmetic sequence form a line so we draw a line connecting them.

Sequences are an ordered list and do not always need to follow a rule, so we often only find and use the positive integer term numbers.

Arithmetic (linear) sequence - A sequence where the difference between successive terms is a constant.