Graphing Calculator
Plot a straight line y = mx + b. Enter slope (m) and y-intercept (b).
What is a graphing calculator?
A graphing calculator plots the line y = mx + b on a graph. Example: y = 2x + 1 has slope 2 and y-intercept 1.
How to use it
Enter the slope m and the y-intercept b, then tap Draw Graph. The line is drawn with x and y axes and gridlines.
Reading the graph
Slope m tells how steep the line is. The y-intercept b is where the line crosses the y-axis. For y = 2x + 1, the x-intercept is -0.5.
Example
y = 2x + 1. The slope is 2, so the line rises 2 units for every 1 unit across. The y-intercept is 1, so the line crosses the y-axis at (0, 1), and it crosses the x-axis at (-0.5, 0).
Frequently Asked Questions
What is the slope of y = 2x + 1?
2.
What is the y-intercept of y = 2x + 1?
1.
What is the x-intercept of y = 2x + 1?
-0.5.
More calculators: Math Tools and All Tools.