A(4) =13
a(1) = 1
a(2)=5
a(3)=9
a(4)=13
a(5)=17
So, the arithmetic formula is: a(n) = a(n-1) + d
If we look at the formula, the numbers change by +1, which is our d
We can test our formula by look for 2,
a(2)= a(2-1)+4
a(1)+4
1+4
a(2)=5
Even though the sequence tells us, we can test our formula anyhow
a(4)= a(4-1)+4
a(3)+4
9+4
a(4)=13
Answer:
you look at the slope and y intercept for example,
y=4x+10
the slope is 4 (increases 4/1 at a time)
and the intercept is 10 (the line hits the y axis at 10)
Step-by-step explanation:
The answer is 246.7799352750809, but you can round it and say 246.78
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Step-by-step explanation: