shreyasvrangan
27.11.2019 •
Mathematics
Find the value of y in the sequence 2, 8, 3y +
1. if the sequence was arithmetic
2. if the sequence was geometric
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Ответ:
Then we have the
2. If the sequence was geometric we had to know the common ratio = 8/2 = 4
So the answer is :
Ответ:
⇒ f(2)= 3*2+ 4= 10
The basic idea is that you replace all x values with 2 to find f(2).
f(x) = 17
⇒ 3x+ 4= 17 (for f(x)= 3x+ 4)
⇒ 3x= 17-4
⇒ 3x= 13
⇒ x= 13/3
⇒ x= 4 1/3
f(2)= 10
f(x)=17 when x= 4 1/3
Hope this helps~