The Length of a 25-M Wire Increases by 0

question 4

Multiple Choice

The length of a 25-m wire increases by 0.25 cm when it is heated from 20°C to 90°C.What is the coefficient of linear expansion of the wire?

• A)1.43 × 10^-6/ºC
• B)1.43 × 10^-4/ºC
• C)8.93 × 10^-4/ºC
• D)8.93 × 10^-2/ºC

---

Definitions:

Slope

In a linear equation, the coefficient that represents the rate of change of the dependent variable with respect to the independent variable.

Y′ Symbol

A notation generally used to represent predicted values, especially in the context of regression analysis.

Y Intercept

The y-intercept is the point where a line or curve intersects the y-axis of a graph.

Y Predictor

A variable used in statistical models to predict another variable, often denoted as the independent variable.