Question

Use the table to answer the question.

Which exponential equation contains the points shown in the input-output table?

Table of Values for a Exponential Equation
x y
−2 5,000,000
1 0.625
(1 point)
Responses

y=−125⋅0.005x
y is equal to negative 125 times 0 point 0 0 5 to the x th power

y=125⋅−0.005x
y is equal to 125 times negative 0 point 0 0 5 to the x th power

y=0.0625x
y is equal to 0 point 0 6 2 5 to the x th power

y=125⋅0.005x
y is equal to 125 times 0 point 0 0 5 to the x th power

Answer 1

y = 125·(0.005)^x

Check: x = 1 → y = 125·0.005 = 0.625.
x = −2 → y = 125·(0.005)^(−2) = 125 / (0.005^2) = 125 / 0.000025 = 5,000,000.