The Point $P ( 16,4 )$ Lies on the Curve $y = \sqrt { x }$

question 70

Multiple Choice

The point $P ( 16,4 )$ lies on the curve $y = \sqrt { x }$ . If is the point $Q ( x , \sqrt { x } )$ , use your calculator to find the slope of the secant line $P Q$ (correct to six decimal places) for the value $x = 3.89$ .

• A) m_PQ = - 0.044439
• B) m_PQ = - 0.167439
• C) m_PQ = - 0.307439
• D) m_PQ = 0.377439
• E) m_PQ = 0.167439

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Definitions:

Standard deviation

A measure that quantifies the amount of variation or dispersion of a set of data values.

Population standard deviation

A measure of the dispersion of a set of data from its mean, calculated for the entire population.

Confidence interval

A range of values, derived from the sample statistics, that is likely to contain the value of an unknown population parameter.

Confidence interval

An estimated range of values calculated from sample data that is likely to include the true population parameter with a specified level of confidence.