ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Playlist Algebra and Functions Test Questions 74 videos

0
CAHSEE Math 6.1 Algebra and Functions
198 Views

Algebra and Functions: Drill Set 6, Problem 1. Solve the inequality.

1
CAHSEE Math 6.2 Algebra and Functions
193 Views

Algebra and Functions: Drill Set 6, Problem 2. Solve the inequality. 

2
SAT Math 1.3 Algebra and Functions
220 Views

SAT Math 1.3 Algebra and Functions. How many 16 oz. bottles did she buy?

See All

SAT Math 7.4 Algebra and Functions 200 Views


Share It!


Description:

SAT Math 7.4 Algebra and Functions

Language:
English Language

Transcript

00:02

Put this in your calculator and shmoop it...

00:04

If x squared + 2x is greater than or equal to -3 and is less

00:09

than or equal to 3... then x cannot be which of the following?

00:12

And here are the potential answers...

00:16

Make sure you pay attention to the word CANNOT...

00:19

Here's where they're trying to catch you...

00:21

We're looking for the value of x in the answer choices that makes x squared + 2x

00:27

OUTSIDE of the range of -3 and 3.

00:31

We can go ahead and just plug in the answer choices and see what we get.

00:36

(-3)2 + 2(-3) equals 9 minus 6 equals 3. That's true.

00:46

(-2)2 + 2(-2) equals 4 minus 4 equals 0. That's inside the range. True.

00:53

(0)2 + 2(0) equals 0. True.

00:57

(1)2 + 2(1) equals 1 plus 2 equals 3. True. Inside the range.

01:03

(3)2, that's 9, + 2(3), that's 6, Ooh, add them together that's 15.

01:10

Not even close! Way outside the range over here.

01:13

Looks like our answer's E.

Related Videos

SAT Math 2.1 Geometry and Measurement
2779 Views

SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?

SAT Math 9.4 Algebra and Functions
1300 Views

SAT Math 9.4 Algebra and Functions

SAT Math 9.2 Algebra and Functions
377 Views

SAT Math 9.2 Algebra and Functions

SAT Math: Identifying an Equation for the Average of Two Percentages
23 Views

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...

SAT Math: Which Equation Represents Profit?
13 Views

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...