A) as the exponent decreases by one, the number is divided by 5
B) as the exponent decreases by one, the number is divided by 4
C) as the exponent decreases by one, the number is divided by 3
D) 4⁰ = 4 ÷ 4 = 1
4⁻¹ = 1 ÷ 4 =
4⁻² = ÷ 4 =
E) 3⁰ = 3 ÷ 3 = 1
3⁻¹ = 1 ÷ 3 =
3⁻² = ÷ 3 =
The answer is: [C]: " f(x) = 0.7(5)ˣ " .
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Explanation:
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From all the answer choices given;
Answer choice: [C]: " f(x) = 0.7 (5)ˣ " ; is the answer choice with a "positive number"; {which is then multiplied by: [ a "positive whole number" or a "positive number greater than "1"; that is raised to a "positive variable"] .
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How I solved this: Further Explanation:
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A positive number multiplied by a {"number less than 1; raised to "x"] would result in increasingly lower values as "x" increases. Same with "raised to "negative x" {refer to "Answer choice [D]" }.
Answer:
x has to be less than 3
Step-by-step explanation:
Yes as the even times the occurrence of negative signs makes the answer positive.
To find the x intercept, sub in 0 for y and solve for x...
-2x + 5y = -20
-2x + 5(0) = -20
-2x = -20
x = -20/-2
x = 10....so the x int is (10,0)