Unit 1: Equations & Inequalities

UNIT 1:

EQUATIONS & INEQUALITIES

SOLVING EQUATIONS

​YOU CAN USE "nSOLVE" TO SOLVE EQUATIONS

-GO TO THE CALCULATOR SCREEN ON YOUR CALCULATOR

-PRESS MENU, 3, 1

-YOU WILL SEE THIS ON YOUR SCREEN -----> nSolve( )

-INSIDE THE PARENTHESIS, TYPE IN YOUR EQUATION MAKE SURE TO PUT A COMMA AND THE VARIABLE YOU ARE SOLVING FOR.

-THEN PRESS ENTER

nSolve (5x-6=3x+4, x)

Multiple Choice

Try using nSolve for the following question.

• 7/3

• 3/7

• 5/7

• 7/5

Writing Equations or Inequalities

Look for key words that give away variable terms such as: PER, EACH, EVERY.

This can be an unknown value in the problem.

Look for key words that represent a one time thing, something you start with or constant terms.

Look for key words that mean add or subtract such as: increasing, plus, depositing, withdrawing, deducting, decreasing.

Look for words that give away inequality symbols such as: less than, more than, no more than, no less than, at maximum, at minimum, greater than or equal to, less than or equal to.

-TIP: Create a T-chart

Multiple Choice

Write an equation for the following problem.

Multiple Choice

Which inequality represents the situation?