The function f ( x ) = 2 ⋅ 5 ^x can be used to represent an exponential growth curve. Which of the following points is NOT on the curve?

Group of answer choices

(3, 250)

(1, 10)

(2, 20)

(2, 50)

Point (2, 20) does not lie on the given curve.

Step-by-step explanation:

Let us see explanation:

(2, 20) is not on the curve.

Step-by-step explanation:

When x = 3,  f(x) =  2*5^3 = 250 .  So (3, 250) is on the curve.

When x = 1, f(x) = 2*5^1 = 10 .  So (1, 10) is on the curve.

When x = 2, f(x) =  2*5^2 = 50 .   So (2, 50) is on the curve.

From the last line we see that (2, 20) is NOT  on the curve.

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.

its kinda hard to answer this when we dont have all the information that we need.