ACT Math 3.1 Intermediate Algebra
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
|ACT Mathematics||Intermediate Algebra|
|Algebra||Sequences and Series|
|Foreign Language||Arabic Subtitled|
|Product Type||ACT Math|
|Rhetorical Skills||Organization: Sentences and Paragraphs|
And here, we get exponentially more negative as we go along. Sorta like this guy.
We are just being asked to find the number that comes after negative 7 and we're travelling
left from 0 in steps of 1, 2, then 4...
The pattern is "2 times... something..." Looks like 2 times the previous number, then
...so if we keep going, we're at minus 7 times 2 which is minus 14...
...then subtract 1 and we have minus 15.
Hopefully you got that right. We don't want to take any chances at upsetting Mr. Black.