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Mrac [35]
3 years ago
10

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 2 cos 3θ​

Mathematics
1 answer:
Nina [5.8K]3 years ago
5 0
Take a quick peek at brainly.com/question/10417591
that's how you test for the y-axis, x-axis and origin

recall your symmetry identities, cos(- θ) = cos(θ)

so, simply replace θ for those values, and if the resultant function looks exactly like the original, then it has that symmetry.
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Answer:

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Step-by-step explanation:

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Ronch [10]

Answer:

C. f(x) = 40(1/4)^x

Step-by-step explanation:

Check all the options:

When x = 0

A. f(x) = 1/4(40)^x

f(x) = 1/4(40)^0

f(x) = 1/4(1)

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When x = 0

B. f(x) = 1/2(40)^x

= 1/2(40)^0

= 1/2(1)

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When x = 0

C. f(x) = 40(1/4)^x

= 40(1/4)^0

= 40(1)

= 40

When x = 0

D. f(x) = 4(1/3)^x

= 4(1/3)^0

= 4(1)

= 4

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Step-by-step explanation:

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