Quantitative Comparisons (QC) and Data Interpretation

Question 1

How to prove (D) [neither bigger nor the same]

Answer 1

Try different numbers on the number line (1,0,-1, fractions, ect.)

Question 2

What can you do to the options of a Quantitative Comparison?

Answer 2

Add or subtract from both sides
Multiply or Divide both quantities if you know they’re +
Sq or Sqrt both quantities if you know they’re both +

Question 3

When should you use Quantity B as a benchmark?

Answer 3

When B contains no numbers
When A requires calculations that are simpler by using B
When B can prove C

Question 4

If the Quantitative Comparison has a range, what should you test?

Answer 4

The limits of the range

Question 5

What do you do if a variable is defined in terms of another variable?

Answer 5

Simplify and find a direct comparison

Question 6

When a quadratic appears in a QC

Answer 6

Foil, eliminate common terms and compare

Question 7

When a quadratic appears in the common information of the QC

Answer 7

Find both solutions and plug in both

Question 8

How do you maximize an absolute value?

Answer 8

Make the inside as far away from zero as possible

Add + to +, Add - to -

Question 9

What number should you plug in if there’s an exponent?

Answer 9

1 and 0

Question 10

Scenarios if xy>0

Answer 10

x and y are both positive

x and y are both negative

Question 11

Scenarios if xy

Answer 11

x is positive and y is negative

x is negative and y is positive