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Chapter 12: Q.12.15 (page 714)

The price of a single issue of stock can fluctuate throughout the day. A linear equation that represents the price of stock for Shipment Express is y=15鈥�1.5xwhere x is the number of hours passed in an eight-hour day of trading.

What are the slope and y-intercept? Interpret their meaning.

Short Answer

Expert verified

The slope is b=-$1.5and the y-intercept isa=$15..

Step by step solution

01

Given information

Given in the question that a linear equationy=15鈥�1.5x.

02

Solution

The general linear equation formula is,

y=a+bx

Here,

a=y-intercept

b=slope

The y is a dependent and x is an independent variable.

Now the linear equation in the question is

y=15鈭�1.5x

So,

The y-intercept is a=$15which means that one time or fixed value of the stock at the beginning of the day or the no hour has passed yet in an eight-hour day of trading.

The slope is b=鈭�$1.5means the number of hours passed increased by one,

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