Math Problem Statement

Use technology to find points and graph the line y, minus, 4, x, equals, 1, commay−4x=1, following the instructions below. done plotting points Plot at least two points that fit on the axes below. Click a point to delete it.

1 2 3 4 5 6 7 8 9 10 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 1 2 3 4 5 6 7 8 9 10 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10

Solution

To plot the equation y4x=1y - 4x = 1 on a coordinate plane, we will first rewrite the equation in slope-intercept form y=mx+by = mx + b to make it easier to plot the points:

Step 1: Rewrite the equation in slope-intercept form

y4x=1y - 4x = 1 Add 4x4x to both sides: y=4x+1y = 4x + 1

Step 2: Identify points

Now, we have the equation in the form y=4x+1y = 4x + 1, where:

  • The slope m=4m = 4 (which means the line rises 4 units for every 1 unit it moves to the right).
  • The y-intercept b=1b = 1, which is the point where the line crosses the y-axis at (0,1)(0, 1).

Step 3: Plot at least two points

  1. Start with the y-intercept, (0,1)(0, 1), because when x=0x = 0, y=1y = 1.
  2. For another point, let's set x=1x = 1 and find yy: y=4(1)+1=4+1=5y = 4(1) + 1 = 4 + 1 = 5 So, the point (1,5)(1, 5) is another point on the line.

Now, plot these two points on the graph:

  • Point 1: (0,1)(0, 1)
  • Point 2: (1,5)(1, 5)

You can connect these two points with a straight line. The line will continue infinitely in both directions.

Tip:

To find more points on the line, simply choose other values for xx and solve for yy. For example, if x=1x = -1, then y=4(1)+1=4+1=3y = 4(-1) + 1 = -4 + 1 = -3. So, another point would be (1,3)(-1, -3).

Would you like me to help you with additional points, or explain more about graphing lines? Let me know!

Follow-up Questions:

  1. How do you calculate the slope of a line from an equation?
  2. What happens if you have a negative slope in a line equation?
  3. How can you find the x-intercept of the equation y=4x+1y = 4x + 1?
  4. How would you graph a vertical line, such as x=3x = 3?
  5. What does it mean when the slope of a line is zero?

Tip: When plotting lines, it helps to always find the slope and y-intercept first before plotting.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Graphing
Slope-Intercept Form

Formulas

y = mx + b

Theorems

Slope-Intercept Form Theorem

Suitable Grade Level

Grades 6-8