If Sarah invests $5,000 into a fund that earns 6% interest compounded annually, how long will it take for her
investment to grow into $50,000?
About 40 years
About 4 years
About 35 years
About 20 years

My math says your answer would be A, About 40 years.

Here's my math to show how I got that:

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

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so

step-by-step explanation:

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