Year 10 Maths - 10A
Parabolas and Other Graphs
Choosing a Model: Linear, Quadratic or Exponential
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Questions
Question 1
209732
Consider the table of values below.
| \(x\) | \(0\) | \(1\) | \(2\) | \(3\) | \(4\) |
|---|---|---|---|---|---|
| \(y\) | \(5\) | \(8\) | \(11\) | \(14\) | \(17\) |
(a) Find the first differences.
(b) State the type of model that fits the table.
(c) Write a rule for \(y\) in terms of \(x\).
Part a:
(a) each first difference \(=\)
3
1 mark
Part b:
Linear
Correct
Quadratic
Exponential
Part c:
(c) gradient \(=\)
3
1 mark
Part d:
\(y\)-intercept \(=\)
5
1 mark
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