Solve each system of linear equations by substitution
1 answer:
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Answer:
(A) f(x) = 2 *
Step-by-step explanation:
[] We can find our answer by plugging the x values into the functions as t and solving.
-. Using this method, starting with the A function, we find that the first function models the data and we do not need to test the others. I still have shown the work for the others as it is good to check your work.
[✓] f(x) = 2 *
(1, 8) }{}{}{ f(x) = 2 * = 2 * 4 = 8
(2, 32) }{}{}{ f(x) = 2 * = 2 * 16 = 32
(3, 128) }{}{}{ f(x) = 2 * = 2 * 64 = 128
-> This pattern continues
[✗] f(x) =
(1, 8) }{}{}{ f(x) = = 4 ≠ 8
-> This function does not model the data as it does not fulfil the first point
[✗] f(x) = 4 *
(1, 8) }{}{}{ f(x) = 4 * = 4 * 2 = 8
(2, 32) }{}{}{ f(x) = 4 * = 4 * 4 = 16 ≠ 32
-> This function only models (1, 8) but does not fully model the data
[✗] f(x) =
(1, 8) }{}{}{ f(x) = = 8
(2, 32) }{}{}{ f(x) = = 64 ≠ 32
-> This function only models (1, 8) but does not fully model the data
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather