2. Grouping Symbols ( ) [ ] Exponents Multiply or Divide *** Left to Right Add of Subtract *** Left to Right

3. Algebraic expression an expression that contains a variable. Ex. N+4 6x Expression a math phrase that contains numbers symbols and or variable. ***NO EQUAL SIGNS! An positive or negative whole number. When will we ever need to use negative #? Debt, Stock, Elevation, Tempeture, Football, Golf.

4. Combining… Like Terms ** + - = - - + = - - -= + Ex. 15 -12 +3 +6 14-12 2 Integers -2x +3 Constant Coefficient Variable Ex. 5x+3y+6x+2y 11x+5y

5. Distributive Property 3(5x+7) -3 15x+21-3 15x+18 Mult. Div. Integers -2*-3 6

6. Equation A math sentence that contains numbers, variables an equal sign. **WE SOLVE THEM** Mult. Div. Equation Same + Dif. -

7. Two-Step Equation Ex. 2x+4=6 -4 -4 2x=2 2 2 x=1

8. Inequality A mathematical sentence that contains…, 15 x > 15

9. Finding Solution Ex. Find four solution of y=2x-1 *Your in charge you make it* X Y -1 -3 0 -1 1 1 2 3

10. Linear Equation All linear equation have two variables which appear in separate terms and do not have a exponent larger than one. When we graph a linear equation it forms a LINE. Examples Y=2x-1 Y=3x Y=x+5 Non Examples Y= x2+1 Y=2x3 Y= 3 x Y-x+2 X Y -3 1 0 4 15 2 6 3 7

11. Numbers Prime Numbers A number that has only 2 factors ONE & ITSELF Ex. 17, 3, 19, 23, 7 ***Neither Zero or One are Prime or Composite*** Composite Numbers A number that has only 2 factors. Ex. 4,8,6,148,112 Factor A number that will divide evenly into another number. Ex. List the factors of 12 1, 2, 3, 4, 12

12. Divisibilitary # divis. by IF 2 If it last number is even. 3 If the sum of the digit is divis. By 3 4 If the last 2 digits is div. 4 5 If the # is div. by 5 or 0 8 The last three digits. (add) 9 If the sun of the digits is div. by 9 10 If the last number ends with 0

13. Scale The scale gives the relationship between the measurements on a drawing or model and the measurement of a real object. 10in. Ex. 1 inch = 3 feet 5in. **There the same** 30ft 15ft

14. Similar Figures Are shapes with the same shape but different size. Angles have the same measures, sides are proportional.