ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Geometry Videos 250 videos
Want to figure out the area and perimeter of irregular shapes? Break them down into regular shapes. For example, a flower can be broken down into s...
“Polygon” - it’s not just something we say when our pet parrot escapes through the kitchen window. Curious to find out what angle these guys...
We inscribed some angles on the walls of our office, but our boss got mad, so we made this video instead.
ACT Math 3.4 Coordinate Geometry 242 Views
Share It!
Description:
ACT Math: Coordinate Geometry Drill 3, Problem 4. Find the slope of the line.
Transcript
- 00:02
For a good time, solve this shmoopy question...
- 00:05
What is the slope of a line with the equation 4x plus 2y equals 12?
- 00:12
And here are your options...
- 00:16
Okay, when in doubt put the equation into the standard point slope form of a line
- 00:21
We want the Y over here and the left in the
Full Transcript
- 00:25
X over here on the right. So we can rewrite the equation
- 00:29
as 2y equals -4x
- 00:32
plus 12. We just subtracted 4x from both sides
- 00:37
Now we need Y, not 2y, on the left dividing both sides by two
- 00:42
and we have Y equals -2x plus six
- 00:46
so the slope here is M which is...yeah negative 2 and the answer is A.
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?
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...