Mathematics 30 June 1999 Grade 12 Diploma Exam

Use the following information to answer the next question.
The graph of the relation Ax 2 + Cy 2 – 36 = 0 is shown below.
y
4
3
2
1
–5 –4 –3 –2 –1
–1
1 2 3 4 5
–2
–3
–4
x
22. The coefficients A and C are interchanged and the resulting relation is graphed.
The graph is
A.
y
B.
y
4
3
2
1
–5 –4 –3 –2 –1
–1
1 2 3 4 5
–2
–3
–4
x
4
3
2
1
–5 –4 –3 –2 –1
–1
1 2 3 4 5
–2
–3
–4
x
C. D.
y
y
4
3
2
1
–5 –4 –3 –2 –1
–1
1 2 3 4 5
–2
–3
–4
x
4
3
2
1
–5 –4 –3 –2 –1
–1
1 2 3 4 5
–2
–3
–4
x
14