dcmartinezp wrote:
Hi @GreenlightTestPrep Brent, thank you by your message!
It's a little confuse for me that I have just the option provided by Sandy/MGRE. Just I imagine myself doing the test and no be sure that I could use picking numbers or another strategy..
How do you do this exercise using picking numbers without a err as I had?
I tried two options, just because I was conscious that I do not know whether the values of a and b are positive or negative, integers of fractions.
Thank you
It's totally fine to test values. HOWEVER, you cannot first simplify the quantities as you did the first time.
We start with:
QUANTITY A: (a-b)/(b-a)
QUANTITY B: 1
Case 1If a = 2, and b = -3, we get:
QUANTITY A: (2 - -3)/(-3 - 2) = 5/-5 = -1
QUANTITY B: 1
Quantity B is greaterCase 2 If a = -2, and b = 3, we get:
QUANTITY A: (-2 - 3)/(3 - -2) = -5/5 = -1
QUANTITY B: 1
Quantity B is greaterCase 3 If a = 1, and b = 7, we get:
QUANTITY A: (1 - 7)/(7 - 1) = -7/7 = -1
QUANTITY B: 1
Quantity B is greaterCase 4 If a = 11, and b = 2, we get:
QUANTITY A: (11 - 2)/(2 - 11) = 9/-9 = -1
QUANTITY B: 1
Quantity B is greaterEtc...
Does that help?
Cheers,
Brent