Math Problem Statement

Graph the equation y = 3x + 1.

Solution

The equation shown in the image is y=3x+1y = 3x + 1, which represents a linear equation in slope-intercept form y=mx+by = mx + b. Here, m=3m = 3 is the slope, and b=1b = 1 is the y-intercept (the point where the line crosses the y-axis).

Steps to graph the equation:

  1. Plot the y-intercept: The y-intercept is (0,1)(0, 1), so the first point to plot is at y=1y = 1 on the y-axis.

  2. Use the slope: The slope m=3m = 3 means that for every 1 unit you move to the right on the x-axis, you move 3 units up on the y-axis. Starting from (0,1)(0, 1), you can plot another point by moving 1 unit to the right (to x=1x = 1) and 3 units up (to y=4y = 4), so the next point will be (1,4)(1, 4).

  3. Draw the line: After plotting these two points, you can draw a straight line through them, which represents the equation.

Let me know if you would like more details on the graphing process or any other questions!


Here are 5 related questions:

  1. How would the graph change if the slope were negative, like in y=3x+1y = -3x + 1?
  2. What happens to the line if we change the y-intercept to b=0b = 0, giving y=3xy = 3x?
  3. How would you graph a vertical line, such as x=2x = 2?
  4. What is the slope of a horizontal line, like y=5y = 5?
  5. Can you find the x-intercept of the line y=3x+1y = 3x + 1?

Tip: The slope of a line tells you how steep the line is. A larger slope results in a steeper line, while a smaller slope results in a flatter line!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Graphing
Slope-Intercept Form

Formulas

y = mx + b (Slope-Intercept Form)

Theorems

The Slope-Intercept Theorem

Suitable Grade Level

Grades 8-10