HP Prime Graphing NW280AAABA manual Enter known variables, Solve the unknown variable

Enter known variables

N o t e

Solve the unknown variable

4.Display the Numeric view.

M

Here you specify the values of the known variables, highlight the variable that you want to solve for, and

tap .

5.Enter the values for the known variables.

2 7.7 8E1 6.6 7E\1 0 0 E

Some variables may already have values against them when you display the Numeric view. This occurs if the variables have been assigned values elsewhere. For example, in Home view you

might have assigned 10 to variable U: 10 U. Then when you open the Numeric view to solve an equation with U as a variable, 10 will be the default value for U. This also occurs if a variable has been given a value in some previous calculation (in an app or program).

To reset all pre-populated variables to zero, press SJ.

6.Solve for the unknown variable (A).

Move the cursor to the A

field and tap .

Therefore, the acceleration needed to increase the speed of a car from 16.67 m/s (60 kph) to 27.78 m/s

(100 kph) over a distance of

100 m is approximately 2.4692 m/s2.

The equation is linear with respect to the variable A. Hence we can conclude that there are no further solutions for A. We can also see this if we plot the equation.

Solve app 261