ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Numbers and Operations Videos 64 videos
SAT Math 1.4 Numbers and Operations. Solve the equation.
SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?
SAT Math 5.1 Numbers and Operations 274 Views
Share It!
Description:
SAT Math 5.1 Numbers and Operations
Transcript
- 00:02
Here’s your shmoop du jour, brought to you by Line Segments.
- 00:05
For when you’re not hungry enough to eat an entire line.
- 00:09
The midpoint of AB is (1.5, 3). If A is (-0.5, 2), what is the x-coordinate of B?
- 00:21
Okay, so we’re asked to find the x-coordinate of the point that will create a line segment
- 00:26
whose midpoint is 1.5, 3.
Full Transcript
- 00:29
All right… first, it helps to graph out the information we do have.
- 00:34
Since we’re just concerned with finding the x-coordinate, we only need to focus on
- 00:38
the x-coordinates of the problem.
- 00:40
To go from the x-coordinate of point A to the x-coordinate of the midpoint,
- 00:45
we need to hop over 2 units to the right.
- 00:48
Since it's the MIDPOINT, we know point B must have an
- 00:51
x-coordinate another 2 units to the right of the midpoint.
- 00:56
We have 1.5 plus 2 is 3.5...
- 01:00
That's it. That's our answer. 3.5.
Related Videos
SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?
In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...
Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...