Karl has $400 in a savings account. The interest rate is 10%, compounded annually. Which type of model best fits this situation?
2 answers:
Answer:
This is an exponential model.
Step-by-step explanation:
The formula for compound interest is
, where a is the principal, r is the interest rate, n is the number of times per year the interest is compounded, and t is the number of years.
Since the number of years will be a variable, we have an equation raised to a power of x; this is an exponential function.
The equation for this would be
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Hope this helps ^-^
Hope this helps ^-^
Answer:
Step-by-step explanation:
Slope-intercept form of line:
First find the slope of the line AB. ie, m
Slope of the perpendicular line = -1/m
(2 , 3) ⇒ x₁ = 2 & y₁ = 3
(-10, 8) ⇒ x₂ = -10 & y₂ = 8
Equation of the required line: y = mx + b
The line passes through (-5 , 10). Substitute in the above equaiton,
10 + 12 = b
b = 22
Equation of the line: