how to determine x and y variables?
442630
The values that you input for x will determine the values of y. So x is the independent variable and y is the dependent variable. The same would be true if the equation was b = a2 . The a would be the x-variable (independent variable), and b would be the y-variable, (dependent variable).
343758
Press the "Trace" button. Press the "0" button. This will move the cursor to the Y intercept where X = 0. Look at the bottom of your screen; the Y-intercept will be displayed there.
966366
['A variable is any quantity that you are able to measure in some way. ... ', 'An independent variable is the variable the experimenter controls. ... ', 'A dependent variable is the measurement that changes in response to what you changed in the experiment.']
16726
['Step One: Identify two points on the line.', 'Step Two: Select one to be (x1, y1) and the other to be (x2, y2).', 'Step Three: Use the slope equation to calculate slope.']
794688
['ax2 + bx + c = 0. ... ', 'A) If x >= y, i.e. x is greater than or equal to y.', 'B) If x > y, i.e. x is greater than y.', 'C) If x <= y, i.e. x is less than or equal to y.', 'D) If x < y, i.e. x less than y.', 'E) If x = y, or no relation can be established between x and y.']
304147
['Example 1: 2x + y = 1. -3x + 2y = 0. Solve one equation for a single variable (which one? ... ', 'Example 2: 2x + y = 1. -2x - y = 2. Solve the first for y: ... ', 'Example 3: 2x + y = 1. 6x + 3y = 3. Solve the first for y:']
623152
To calculate it: Add both "x" coordinates, divide by 2. Add both "y" coordinates, divide by 2.
1124005
['subtract the Y values,', 'subtract the X values.', 'then divide.']
1179844
The general formula for a line is y=mx+b, for which m is the slope, b is the y-intercept, x is any x value and y is any y value. By looking at the equation of the trend line, you can determine the y-intercept. For example, if the equation of the trend line is y=2x+5, the y-intercept is 5.
1317598
['x+y=7.', '⇒y=−x+7. ⇒y=(−1)x+7.', 'Here y=(−1)x+7.', '⇒slope=−1 and y-intercept =7.', 'Hence slope of the line is −1.']
1380362
The dependent variable is usually graphed on the y-axis, and the independent variable is usually graphed on the x-axis. In addition, the value of the independent variable determines the value of the dependent variable and is used in experiments to test the value of the dependent variable.
985565
The line of best fit is described by the equation ŷ = bX + a, where b is the slope of the line and a is the intercept (i.e., the value of Y when X = 0). This calculator will determine the values of b and a for a set of data comprising two variables, and estimate the value of Y for any specified value of X.
588687
Determining the Domain and Range Modeled by a Linear Function. To determine the domain of a given situation, identify all possible x-values, or values of the independent variable. To determine the range of a given situation, identify all possible y-values, or values of the dependent variable.
473940
['To find an inverse function reflect a graph of a function across the y=x line and find the resulting equation. This can also be done by setting y=x and x=y. ... ', 'now switch the x and y variables to create the inverse functions. ... ', 'This function when solved for y will be the same as the following.']
339026
['Add both "x" coordinates, divide by 2.', 'Add both "y" coordinates, divide by 2.']
386859
['Find the derivative and use it to determine our slope m at the point given.', 'Determine the y value of the function at the x value we are given.', "Plug what we've found into the equation of a line."]
805778
Calculate -b / 2a. This is the x-coordinate of the vertex. To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. This is the y-coordinate of the vertex.