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ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
ACT Math Intermediate Algebra Drill 1, Problem 1. What is the product of (a – 3)2?
ACT Math Intermediate Algebra Drill 1, Problem 4. Solve for x based on the equation.
ACT Math 4.1 Intermediate Algebra 231 Views
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Description:
ACT Math Intermediate Algebra Drill 4, Problem 1. Which equation contains the point (1, 10)?
Transcript
- 00:03
We just might have a problem... that you'll understand...we all need shmoop...
- 00:11
Which equation contains the point (1, 10)?
- 00:13
And here are the potential answers...
- 00:18
OK so to find the equation that contains the point (1, 10)...
- 00:21
...we basically just have to plug in x as "1" into all of the answer choices to
Full Transcript
- 00:26
see which one is on the line of the actual equation.
- 00:36
Here we go... hold on to your... plugs...
- 00:50
2 times 1 squared plus 3 times 1 plus 2...
- 00:54
equals 2 plus 3 plus 2, or 7. And a 7, sadly... is not a 10.
- 01:04
1 squared plus 4 times 1 plus 3... equals 1 plus 4 plus 3, which equals 8... so we're
- 01:11
still lookin' for the princess who fits the shoe.
- 01:17
3 times 1 squared plus 4 times 1 plus 4... equals 3 plus 4 plus 4... or 11.
- 01:25
10 isn't even greater than 11, so that doesn't work.
- 01:30
On to D... 2 times 1 squared plus 5 times 1 plus 3... equals 2 plus 5 plus 3... or 10.
- 01:38
Bingo! D should be our answer! Just to check E... 2 times 1 squared plus 5
- 01:43
times 1 plus 6... equals 2 plus 5 plus 6...or 13. Nope.
- 01:48
D it is.
- 01:50
Okay -- you can let go of your plugs now.
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