I tried to graph this line and for some reason it came out with all these different numbers on my calculator.
x + y = 4
It will be a straight line going from upper left to lower right. Do you need to rely on your calculator for such a simple equation?
(4,0), (0,4),(3,1)....
It is easy for someone who knows how this is done. So why did you use 4,0, 0,4, and 3,1?
To graph the line x + y = 4, you can start by rewriting the equation in slope-intercept form (y = mx + b), where m represents the slope and b represents the y-intercept.
Let's isolate y by subtracting x from both sides of the equation:
x + y - x = 4 - x
y = 4 - x
Now that we have the equation in slope-intercept form, we can identify the slope and y-intercept. The slope (m) of this line is -1, meaning that for every increase of 1 in the x-coordinate, the y-coordinate decreases by 1. The y-intercept (b) is 4, indicating that the line crosses the y-axis at the point (0, 4).
To graph the line on your calculator, you need to follow these steps:
1. Enter the equation into your calculator: y = 4 - x
2. Go to the graphing function or mode on your calculator.
3. Set the appropriate window range for the x and y values to be displayed on the graph. For example, you can set the x-range from -10 to 10 and the y-range from -10 to 10.
4. Plot the graph by pressing the graph or plot button.
5. Your calculator should display the line x + y = 4 with the corresponding numbers representing the x and y coordinates along the line.
If you are still encountering issues with different numbers being displayed on your calculator, make sure you have entered the equation correctly and that you have set the appropriate window range for the graph. Additionally, check that you are using the correct graphing mode on your calculator and consult your calculator's manual or online resources for specific instructions on graphing equations.