Would appreciate any help with the following question as I do not know where to start.
7, -2, 5, 3, 8
In the sequence above, each term after the first two terms is the sum of the previous two terms.
For example: 3rd term = 5 = 7 +(-2)
(a) A sequence follows the above rule.
The first term is x and the second term is y
The fifth term is 5.
X, y, -, -, 5
Show that 2x+3y=5
(b) Using the same x and y, another sequence follows the above rule.
The first term is y and the second term is x.
The sixth term is 17.
Y, x, -, -, -, 17.
Write down another equation in x and y.
© Find the values of x and y.