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 on a coordinate plane, we will first rewrite the equation in slope-intercept form to make it easier to plot the points:
Step 1: Rewrite the equation in slope-intercept form
Add to both sides:
Step 2: Identify points
Now, we have the equation in the form , where:
- The slope (which means the line rises 4 units for every 1 unit it moves to the right).
- The y-intercept , which is the point where the line crosses the y-axis at .
Step 3: Plot at least two points
- Start with the y-intercept, , because when , .
- For another point, let's set and find : So, the point is another point on the line.
Now, plot these two points on the graph:
- Point 1:
- Point 2:
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 and solve for . For example, if , then . So, another point would be .
Would you like me to help you with additional points, or explain more about graphing lines? Let me know!
Follow-up Questions:
- How do you calculate the slope of a line from an equation?
- What happens if you have a negative slope in a line equation?
- How can you find the x-intercept of the equation ?
- How would you graph a vertical line, such as ?
- 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