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Which points are on the graph of k(x)=(1/4)^x?

Which points are on the graph of k(x)=(1/4)^x?-example-1
User Slatunje
by
7.1k points

2 Answers

5 votes

Answer: ( -1, 4) & (3, 1/64)

Step-by-step explanation: Plug the X value in and if it gives you the y value as the answer then it is a point on the graph

Example:

k(x) =
(1)/(4){^x}

k(-1) = (1/4)^-1

k(-1) = 4

User RQube
by
8.8k points
6 votes

Answer:

first and third choices are correct

Explanation:

The one you already selected, (-1, 4) is correct, but (3, 1/64) is also correct. You need to check both boxes.

To test for correctness, plug in each value for x into the function and see if the y value shown is correct.

k(-1) = (1/4)⁻¹ = 4 Therefore, (-1, 4) is correct

k(3) = (1/4)³ = 1/64 Therefore, (3, 1/64) is correct

The other choices are not correct

User Fenikso
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7.7k points