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10. y = -4 slope (m) = y-intercept (b) = 11. y + x = 3 slope (m) = y-in…

Question

  1. y = -4

slope (m) =
y-intercept (b) =

  1. y + x = 3

slope (m) =
y-intercept (b) =

  1. x = 3

slope (m) =
y-intercept (b) =
use the graph to identify the slope and y-intercept. then write the equation of the line in slope - intercept form.

  1. slope (m) =

y-intercept (b) =
equation:

  1. slope (m) =

y-intercept (b) =
equation:

  1. slope (m) =

y-intercept (b) =
equation:

Explanation:

Response
Problem 10: \( y = -4 \)

Step 1: Recall slope of horizontal line

A horizontal line has a slope of \( 0 \) because there is no vertical change (rise) for any horizontal change (run). So, \( m = 0 \).

Step 2: Identify y - intercept

The equation \( y=-4 \) means that for all values of \( x \), \( y \) is always \( -4 \). The y - intercept is the value of \( y \) when \( x = 0 \), so \( b=-4 \).

Step 1: Recall slope - intercept form

The slope - intercept form of a line is \( y=mx + b \), where \( m \) is the slope and \( b \) is the y - intercept. For the equation \( y=-x + 3 \), the coefficient of \( x \) is the slope. So, \( m=-1 \).

Step 2: Identify y - intercept

In the equation \( y=-x + 3 \), when \( x = 0 \), \( y = 3 \). So, the y - intercept \( b = 3 \).

Step 1: Recall slope of vertical line

A vertical line has an undefined slope because the run (change in \( x \)) is \( 0 \), and division by \( 0 \) (for the slope formula \( m=\frac{\text{rise}}{\text{run}} \)) is undefined. So, the slope is undefined.

Step 2: Identify y - intercept

A vertical line \( x = 3 \) does not intersect the y - axis (except when \( x = 0 \), but \( x \) is always \( 3 \) here), so there is no y - intercept (or we can say it does not exist).

Answer:

slope (\( m \)) = \( 0 \)
y - intercept (\( b \)) = \( -4 \)

Problem 11: \( y + x=3 \) (rewrite as \( y=-x + 3 \))