5/16 Regents Review Warm Up

What are the zeros of the function f(x) = x² — 13x — 30? 

• —10 and 3

• 10 and —3

• —15 and 2

• 15 and —2

Which function represents exponential decay?

• f(x) = 100(0.9)^x 

• f(x) = 10(1.09)^x 

• f(x) = 1.9^x

• f(x) = ½(9)^x

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5

• x = 5

• x = -50

• x = 30

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined