Answer:
Step-by-step explanation:
The closer the line of best fit is to the points the more accurate it is. The correlation coefficient gives a numerical rank, where 1 is a perfect fit and the closer to 0 it is the less accurate it is.
I need the values of the line at the same x values as the scatterplot points. After you have that take the difference of the value of the line of best fit and the corresponding scatterpoint. if the point is higher than the line then the resiual will be negative and if the point is lower the residual will be positive. Do you have the equation of the line of best fit?
Answer:
C. Its APR, because it's less than its effective interest rate.
Step-by-step explanation:
The interest rate determines the money you must pay on the outstanding balance on the credit card.
The credit card company would advertise the lowest numbers it could truthfully use.
The APR is 15.83 %.
The formula for the effective interest rate is
where the interest rates are expressed as decimals.
If the APR is 15.83% and the interest is compounded daily,
The APR is less than the effective interest rate, so that's what the company would advertise.
Answer:
f'(2) = 8
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Calculus</u>
The definition of a derivative is "the slope of the tangent line".
Derivatives of constants are 0.
Basic Power Rule:
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = 3x² - 4x + 2
<u>Step 2: Find 1st Derivative</u>
- Basic Power Rule: f'(x) = 2·3x²⁻¹ - 1·4x¹⁻¹
- Simplify: f'(x) = 6x - 4
<u>Step 3: Find tangent slope</u>
- Define: f'(x) = 6x - 4, x = 2
- Substitute: f'(2) = 6(2) - 4
- Multiply: f'(2) = 12 - 4
- Subtract: f'(2) = 8
<u>Step 4: Identify</u>
f'(2) = 8 tells us that at <em>x</em> = 2, the slope of the tangent line is 8.
