# Understanding the Concepts and SkillsIn Exercises, we give linear equations. For each equation,find the y-intercept and slope.determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation.use two points to graph the equation.y=−8−4x

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Understanding the Concepts and Skills

In Exercises, we give linear equations. For each equation,

1. find the y-intercept and slope.
2. determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation.
3. use two points to graph the equation.

y=−8−4x

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Step 1

Given:

Linear regression equation:

Y = -8-4x

We know the general linear regression equation is,

y = b0 + b1x

Where b0 = y-intercept and b1 = slope of the regression equation.

Step 2

1.

In given example,

Y-intercept = b0 = -8

Slope = b1 = -4

Step 3

2.

When slope is positive then line slope will show upward in a graph. When slope is negative then line slope will show do...

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