ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Functions Videos 35 videos
Algebra and Functions: Drill 4, Problem 3. The sum of the quadratic parent function and the line given has which of the following as its graph?
CAHSEE Math Algebra and Functions: Drill Set 1, Problem 1. At this rate, what is the total cost of 10 songs?
SAT Math 5.4 Algebra and Functions 291 Views
Share It!
Description:
SAT Math 5.4 Algebra and Functions
- Algebra and Functions / Solving Quadratic Equations by Factoring
- Product Type / SAT Math
- Functions / Build new functions from existing functions
- Functions / Build new functions from existing functions
- Algebra / Write expressions in equivalent forms to solve problems
- Algebra / Write expressions in equivalent forms to solve problems
- Algebra / Write expressions in equivalent forms to solve problems
- Functions / Build new functions from existing functions
- Functions / Build new functions from existing functions
- Passport to Advanced Math / Quadratic and exponential functions (word problems)
Transcript
- 00:02
Gettin' shmoopy with it...
- 00:04
If g of x = the square root of x - 1 to the fourth...what is g of x + 1?
- 00:09
And here are the potential answers...
- 00:14
We're working with composite functions, so all we have to do for this is replace the
- 00:19
instances of x in the first equation with x + 1.
Full Transcript
- 00:24
g of x + 1 = the square root of x + 1 - 1 all to the fourth.
- 00:33
Using the order of operations, we have to deal with the inside of the parentheses first...
- 00:40
So we get, x + 1 - 1 = just x.
- 00:44
So the square root of x to the 4th is just...x squared.
- 00:49
Looks like our answer's A.
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...