Question

Graph the function y=5(14)x
. Complete the ordered pairs for the x-values of −2
, −1
, 0, and 1 by finding the y-values.(1 point)

(−2,−2.5)
, (1,1.25)
, (0,0)
and (1,1.2)


(−2,80)
, (−1,20)
, (0,5)
, and (1,1.25)


(−2,−2.99)
, (−1,−1.49)
, (0,0)
, and (1,1.49)


(−2,0.45)
, (−1,0.67)
, (0,1)
, and (1,1.50)

Answer 1

The correct set is (−2, 80), (−1, 20), (0, 5), (1, 1.25).

Work:
y = 5(1/4)^x
- x = −2: y = 5(1/4)^(−2) = 5·4^2 = 5·16 = 80
- x = −1: y = 5·4 = 20
- x = 0: y = 5·1 = 5
- x = 1: y = 5·1/4 = 1.25