Let a = -x/x and b = 1/x in the linear function Z = a + bX. Which ...

[saraeharris]

Let a = -x/x and b = 1/x in the linear function Z = a + bX. Which of the following statements is true?
 
  A) z = x
  B) z = 0
  C) z = a + bx
  D) z = x

Question 2

Sixty percent of the time, the stoplight will change before you have to wait X seconds, what is the value of X?
 
  A) 72 seconds
  B) 60 seconds
  C) 48 seconds
  D) 36 seconds

[amandalm]

Answer to Question 1

B

Answer to Question 2

A

[saraeharris]

Gracias!

[matt95]

Thanks for the timely response, appreciate it