What is the missing number

[Laura_s23]

2,24, , ,90, , ? What are the missing numbers? I cannot figure this out! Help!

 

[Laura_s23]

Jeff,

Thanks for your help, but adding 22 does not complete the pattern. Which would be my problem. 24+22= 36 +22= 48 +22= 60 (not 90). I am wondering if it should be 60, and is a typo. As I cannot find another solution. If you can find one, please help me.

Thanks,

Laura

 

[pka]

but adding 22 does not complete the pattern. Which would be my problem. 24+22= 36 +22= 48 +22= 60 (not 90). I am wondering if it should be 60, and is a typo. As I cannot find another solution. If you can find one, please help me.

@Laura, you have a real problem with addition!
\(\displaystyle 24+22=46\) not \(\displaystyle 36\).

 

[Deleted member 4993]

Try multiplying by a constant number and adding another constant number.

However, with three numbers only thing you can do to be exactly correct on the given points is to fit a quadratic curve (I know - I am most probably talking over your head).

The exact function would be:

y = (11/3) * x^2 + 11 * x - 38/3

This curve will go through (1,2), (2,24) and (4,90).

Then you would have (3, 160/3) and (5,134)

Neither simple nor a pretty situation........
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The post above was based on my mis-reading the problem.

The actual problem is to find a curve that pass through (1,2), (2,24) and (5,90)

In that case, the curve is: y = 22 * x - 20


(Denis - I am going - am going - don't have to remind me .... to the corner ....)

 

[soroban]

Hello, Laura_s23!

What are the missing numbers? .2, 24, _, _,90, _ ?

Try that addition theory again . . .


\(\displaystyle \begin{array}{cccccccccccc}2 && 24 && \boxed{46} && \boxed{68} && 90 && \boxed{112} \\ & ^{+22} && ^{+22} && ^{+22} && ^{+22} && ^{+22} \end{array}\)