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Line standard calculator how to#

Push the DRG button until you see degrees or DEG indicated in the view screen. If you push the DRG button several times, you will see that the mode in your view screen will change between degrees, radians, and gradients. To put it in degree mode, look for a button that says DRG which stands for Degrees, Radians, and Gradients. If you got a different answer, it probably means that your scientific calculator is not in degree mode.

On a scientific calculator, to find the sine of 30° for example, you type in 30, then press SIN to get 0.5.

Perform a simple SIN function with an easy to remember answer.

These scientific calculator functions are commonly used in Algebra. When you are using the SIN, COS, or TAN functions, you will have to keep in mind two different things: the order of the button presses, and radians versus degrees. Note that there’s usually a limit to how many previous answers are stored, so you can only use this method for recent calculations. When you find the answer you were looking for, press ENTER to place that number in your current equation.

Some scientific calculators allow you to retrieve previous answers by pressing the up arrow button.

You can then use that letter as a placeholder for the answer you stored.

Press STO after retrieving your preferred answer, press ALPHA, select a letter, and press ENTER.

When you press the Ans key, the last answer from the previous calculation will be added into your equation.

Use the Answer function to recall the last displayed answer to an equation.

For example, if you just entered 2^4 and pressed ENTER (which equals 16), typing in -10 and pressing ENTER would subtract 10 from the solution (meaning it would be 16 - 10). You can perform another calculation on that answer by tying in the next operation.

After completing a calculation, the last answer is automatically stored.

There are a couple of different ways to use stored information: Saving your results and pulling them back later is an essential skill for dealing with longer problems.

Line standard calculator how to#

Using the equation y = 3x - 6, set x=0 to find the y-intercept.Learn how to save and restore. It is the point where the line crosses the y axis. The y-intercept of a line is the value of y when x=0. Slope is the coefficient of x so in this case slope = 3

This is slope intercept form, y = 3x - 6.You want to get y by itself on one side of the equation, so you need to divide both sides by 2 to get y = 3x - 6.Subtract 12 from both sides of the equation to get 6x - 12 = 2y.Add 2y to both sides to get 6x = 12 + 2y.Your goal is to get the equation into slope intercept format y = mx + b You have the equation of a line, 6x - 2y = 12, and you need to find the slope.

If you have the equation for a line you can put it into slope intercept form.

Slope intercept form y = 7x - 9 becomes 7x - y = 9 written in standard form. Subtract y from both sides of the equation to get 7x - y - 9 = 0Īdd 9 to both sides of the equation to get 7x - y = 9 Note that the equation should not include fractions or decimals, and the x coefficient should only be positive. Use either the point slope form or slope intercept form equation and work out the math to rearrange the equation into standard form. You may also see standard form written as Ax + By + C = 0 in some references.

Find the difference between the y coordinates, Δy is change in y.

Here you need to know the coordinates of 2 points on a line, (x 1, y 1) and (x 2, y 2).