ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Algebra Videos 351 videos
Don’t even think about starting up your combo lemonade/fro-yo stand without first making sure you understand piecewise functions. You’re just a...
Domain and range: two terms you will learn to love (or hate with a vengeance). The domain is the set of all possible x values, and range is the set...
Functions briefly flirted with the idea of being infomercial hosts, but they didn’t shine when talking on-camera. They’re much better off in th...
ACT Math 4.4 Elementary Algebra 239 Views
Share It!
Description:
ACT Math Elementary Algebra: Drill 4, Problem 4. Solve the expression using the values given.
Transcript
- 00:03
You can't handle the shmoop... For this question, use x = -2, y = -1,
- 00:09
and z = 0. Solve: x over y plus y over x plus z over xy.
- 00:17
And here are the potential answers...
- 00:22
Ok. It just wants us to plug in some
- 00:24
numbers and see what comes out the other side...
Full Transcript
- 00:27
When we do that, we get negative 2 over negative 1 plus negative 1 over negative 2 plus 0 over...
- 00:33
whatever... because 0 over anything is just zero.
- 00:36
So if we simplify, our negative signs cancel out and we get 2 plus a half...
- 00:41
...and the answer is C. There.
Related Videos
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
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.
We don't like knocking people down to size, but we do like simplifying radicals. Join us?
If fleeing criminals always fled the scene of the crime at perfect right angles, it would be much easier to determine their whereabouts. Fortunatel...