Math Problem Statement
Graph the line y = -4x + 2.
Solution
To graph the line given by the equation , we can follow these steps:
-
Identify the slope and y-intercept:
- The equation is in slope-intercept form , where is the slope and is the y-intercept.
- Here, the slope and the y-intercept .
-
Plot the y-intercept:
- The y-intercept is the point where the line crosses the y-axis. Since , plot the point on the graph.
-
Use the slope to find another point:
- The slope means that for every 1 unit you move to the right along the x-axis, you move 4 units down (since the slope is negative).
- Starting from , move 1 unit to the right to , then move 4 units down to . This gives you another point .
-
Draw the line:
- Plot the points and .
- Use a ruler to draw a straight line through these points. Extend the line in both directions to cover the graph.
I'll now graph the line on the given coordinate plane.
Here is how it looks:
- The line crosses the y-axis at .
- It passes through the point .
- The line is drawn with a negative slope, so it goes down as you move from left to right.
Would you like to see the graph or have any further details?
Here are some related questions:
- What does the slope of a line represent in a graph?
- How can you determine the slope from two given points on a line?
- How would the graph change if the slope were positive instead of negative?
- How can you graph a line given in point-slope form?
- What is the significance of the y-intercept in different types of linear equations?
Tip: When graphing lines, always check the slope and y-intercept first—they are the keys to drawing the graph accurately.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Graphing
Formulas
Slope-intercept form: y = mx + b
Theorems
-
Suitable Grade Level
Grades 7-9