ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Playlist ACT® Pre-Algebra 34 videos
ACT Math: Pre-Algebra Drill 1.2. What proportion of Jenna's day is spent Wii-swimming?
ACT Math Pre-Algebra Drill 1, Problem 3. Can you find the product of two square roots?
Find the Absolute Value 276 Views
Share It!
Description:
ACT Math Pre-Algebra Drill 3, Problem 3. Find the absolute value.
Transcript
- 00:03
This question should put a little shmoop in your step...
- 00:06
What does the absolute value of negative 6.23 equal?
- 00:11
And here are the potential answers...
- 00:15
Ahh... translations... learning to speak...math.
- 00:21
So... let's pick this one apart.
Full Transcript
- 00:22
These bar thingies are absolute value signs.
- 00:26
And we know this is a negative sign.
- 00:28
This here is a decimal -- often pronounced "point." In... "American," anyway
- 00:36
So we read the problem as "the absolute value of negative six point two three."
- 00:42
And as in all absolute value problems, it is only measuring how far the point is from the origin.
- 00:47
This thing. Number line.
- 00:50
It's always a positive number, so in this case, its 6.23 units
- 00:54
to the right from 0 on the Number Line...
- 00:56
...and the answer is E.
- 00:58
As in, "Eh."
Related Videos
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.
Jack and Jill went up the hill to fetch a pail of water. But what happened when they got up there? They’ve been gone an awfully long time…