Precalculus Functions & Graphs Using Quizdom to enter an equation Let’s say the answer to a question is 2/3 & -3/4. To enter this using your quizdom remote.

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Presentation transcript:

Precalculus Functions & Graphs Using Quizdom to enter an equation Let’s say the answer to a question is 2/3 & -3/4. To enter this using your quizdom remote you would type 2 then symbols then the divide or / sign then 3 followed by a space then symbols choose the minus or negative sign – then 3/4. It would look like this 2/3 -3/4 Enter this now to make sure you entered it correctly. The order you enter things won’t matter so you could also enter -3/4 2/3 1.4A Equations

Precalculus Functions & Graphs Using Quizdom to enter an equation Now to answer a question that is an equation or expression using remotes you use the symbol button to access the symbols you need. Enter this equation into your remote (5x + 6)(3x – 7) You don’t need to put in spaces between the letters and numbers so you could enter (5x+6)(3x-7). Go ahead and try it now. You can write it either the way I wrote it above or (3x-7)(5x+6). 1.4A Equations

Precalculus Functions & Graphs Using Quizdom to enter an equation You could enter using the symbol tool on your quizdom remote or you could enter 2/3 and -2/3 separated by a space. Try entering plus or minus 2/3 now. 1.4A Equations

Precalculus Functions & Graphs Example #1 Solve the equation. Foil & Solve 1.4A Equations

Precalculus Functions & Graphs You Try #1 Solve the equation. 1.4A Equations Not multiple choice input answer.

Precalculus Functions & Graphs Example #2 Solve the Equation. 1.4A Equations Factor Multiply on top by CD Cancel Solve & Check except

Precalculus Functions & Graphs Example #3 Solve the Equation. 1.4A Equations Factor Multiply on top by CD Cancel Solve & Check Not finished yet, go to next slide

Precalculus Functions & Graphs Example #3 Continued Now check the solution. 1.4A Equations Replace q with -3 Simplify This is undefined, so no solution or

Precalculus Functions & Graphs Example #4 Solve the equation. 1.4A Equations Factor Multiply on top by CD Cancel Solve & Check Not finished yet, go to next slide

Precalculus Functions & Graphs Example #4 Continued Now check the solution. 1.4A Equations Replace m with -4 Simplify This checks so the answer is -4.

Precalculus Functions & Graphs You Try #2 Solve the Equation. 1.4A Equations Factor Multiply each term on top by common denominator Cancel Solve & Check Not finished yet, go to next slide This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.

Precalculus Functions & Graphs You Try #2 Solution Continued Now check the solution. 1.4A Equations Replace x with -2 Simplify This is undefined, so no solution or

Precalculus Functions & Graphs You Try #3 Solution Solve the Equation. 1.4A Equations Factor Multiply on top by CD Cancel Solve & Check Since -2, won’t cause the denominator to turn into a zero, the solution is -2 This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.

Precalculus Functions & Graphs You Try #4 Solve the Equation. 1.4A Equations The answer choices will appear after you have had time to try to work the problem.

Precalculus Functions & Graphs You Try #4 Solution Solve the Equation. 1.4A Equations Factor Multiply on top by CD Cancel Solve & Check except

Precalculus Functions & Graphs Example #5 Solve the Equation. 1.4A Equations Try to factor. Now use ZPP and

Precalculus Functions & Graphs Example #6 Solve the Equation. 1.4A Equations Square root both sides

Precalculus Functions & Graphs Example #7 Solve the Equation. 1.4A Equations Square root both sides

Precalculus Functions & Graphs Example #8 Solve the Equation. 1.4A Equations Distribute then try to factor. a = 2, b = -6, c = 3 Can’t factor use Quadratic Formula.

Precalculus Functions & Graphs You Try #5 Solve the Equation. 1.4A Equations Square root both sides This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.

Precalculus Functions & Graphs You Try #6 Solve the Equation. 1.4A Equations Square root both sides The answer choices will appear after you have had time to try to work the problem.

Precalculus Functions & Graphs You Try #7 Solve the Equation. 1.4A Equations The answer choices will appear after you have had time to try to work the problem.

Precalculus Functions & Graphs You Try #7 Solution Solve the Equation. 1.4A Equations Distribute then try to factor. a = 9, b = 6, c = -1 Can’t factor use Quadratic Formula.

Precalculus Functions & Graphs You Try #8 Solve the Equation. 1.4A Equations and This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.

Precalculus Functions & Graphs Example #9 Use the quadratic formula to factor. 1.4A Equations a = 6, b = 11, c = 4

Precalculus Functions & Graphs You Try #9 Use the quadratic formula to factor. 1.4A Equations a = 6, b = 11, c = -35 This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.

Precalculus Functions & Graphs Example #10 Solve. 1.4A Equations Isolate the absolute value. and Use the definition of absolute value. and

Precalculus Functions & Graphs Example #11 Solve. 1.4A Equations Isolate the absolute value. Use the definition of absolute value. Right? Wrong! The absolute value of any number has to be positive not negative so the answer is no solution. Why?

Precalculus Functions & Graphs You Try #10 Solve. 1.4A Equations Isolate the absolute value. No Solution This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.

Precalculus Functions & Graphs You Try #11 Solve. 1.4A Equations and This is not multiple choice, enter your answer. For multiple answers enter each of them separated by a space only.