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Foundation November 2020 Paper 1 Q8

EduqasFoundationCurrent spec8 marksDrawing & Using GraphsFunctions

8.

(a)

Here is a number machine.

INPUT→Subtract 2→Divide
by 10		→OUTPUT
(i) The input is 45.
What is the output? [1]
(ii) The output is 0·9.
What is the input? [1]
(b)

This number machine can be used to find coordinates \((x, y)\).

\(x\)→Multiply
by 4		→Add 1→\(y\)
(i)

Use the number machine to complete these coordinates. [3]

(2, ………)   (0·5, ………)   (−1, ………)   (………, 5)

(ii)

These coordinates can be used to draw a straight line.

Plot the coordinates found by the number machine and draw the line. [3]

Coordinate grid with x from -6 to 8 and y from -5 to 10
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