Math Problem Statement

Identify the slope and y-intercept of the following line based on the graph provided.

Solution

To determine the slope mm and yy-intercept bb of the given line, we analyze the graph.


Step 1: Identify the y-intercept bb

The yy-intercept is where the line crosses the yy-axis.
From the graph, the line crosses the yy-axis at (0,3)(0, 3).
Thus, b=3b = 3.


Step 2: Calculate the slope mm

The slope mm is defined as: m=riserunm = \frac{\text{rise}}{\text{run}} From the graph, pick two clear points on the line:

  1. (0,3)(0, 3) (the yy-intercept)
  2. (4,1)(4, -1)

The rise (change in yy) is: rise=13=4\text{rise} = -1 - 3 = -4 The run (change in xx) is: run=40=4\text{run} = 4 - 0 = 4

Thus, the slope is: m=riserun=44=1m = \frac{\text{rise}}{\text{run}} = \frac{-4}{4} = -1


Final Answer:

  • Slope m=1m = -1
  • yy-intercept b=3b = 3

Unfortunately, none of the options exactly match the calculated slope of -1. It appears there may be a slight issue with the options or the alignment of the question.

Would you like further clarification or additional analysis? Let me know!


Related Questions:

  1. What is the formula for determining the slope between two points?
  2. How do you identify the yy-intercept of a line?
  3. What does a positive slope versus a negative slope signify?
  4. How can you determine the equation of a line in slope-intercept form?
  5. How would the graph look if the slope were 74\frac{7}{4} instead of 1-1?

Tip: Always verify two points on a line to accurately calculate the slope.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Slope of a Line
Y-Intercept
Linear Equations

Formulas

m = (rise)/(run)
Slope-intercept form: y = mx + b

Theorems

Slope and y-intercept determine the equation of a straight line.

Suitable Grade Level

Grades 8-10