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EOC REVIEW FLASH POWER POINT

EOC REVIEW FLASH POWER POINT. Gregory Fisher, Mt. Tabor High School Used byJeffrey Williams, West Forsyth High School. Hidden Parenthesis. ( ) ( ). 5 2x or 6 -1/2. ( ). ( ). 5a 2 b when a is -2 and b is 3/4. 5 (-2) 2 ( 3/4 ). …. …. ….

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EOC REVIEW FLASH POWER POINT

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  1. EOC REVIEW FLASH POWER POINT Gregory Fisher, Mt. Tabor High School Used byJeffrey Williams, West Forsyth High School

  2. Hidden Parenthesis ( ) ( ) 5 2x or 6 -1/2 ( ) ( ) 5a2b when a is -2 and b is 3/4 5(-2)2(3/4) … … …

  3. A candidate receives 56% within a 4% margin of error |x – 56 |< 4 |x - .56|< .04 |x – Middle#| < othernumber …

  4. Center and Radius of (x-3)2 +(y+6)2=4 • Center: (3,-6) • Radius: = 2 …

  5. X2 + y2 – 6x +10y – 2 = 0 (x2 – 6x ) +(y2 + 10y ) =2 + 9 +25 +9 +25 1/2 1/2 square square (y + 5)2 =36 + (x – 3)2 Center: (3, -5) Radius: =6 …

  6. An open box is made from 11 x 13 sheet of paper. Find dimensions to make a volume of 60in3 if minimum waste 3 x(11 – 2x) (13 – 2x) = 60 Solve by graphing and look for smallest x An open box is made from 8 x 10 sheet of paper. Find dimensions to make maximum volume. x(8 – 2x) (10 – 2x) = y Find by graphing. Give x value x(length – 2x)(width – 2x)=V …

  7. Town of 100,000 grows 5.4%for 7 years • 100000(1 + .054)7 or (1.054)7 $20,000 car depreciates 13.2%for 4 years • 20000(1 - .132)4 or (.868)4 … … …

  8. Growth rate of 5(1.036)x 3.6% {1.036-1 = .036 = 3.6%} Growth rate of 7(.84)x -16% {.84 - 1 = -.16 = -16% or depreciates 16%} … … …

  9. Translating 3|x-2|+ 1 • Narrow because 3>1 • Right 2 x-2=0  x= 2 • Up 1 Translating from • Fatter 5  1 • Left 6 (right 4 to left 2) • Up 6 (down 3 to up 3) … … …

  10. Thinner Wider Right Left Up Down …

  11. Write log3x>2 in exponential form x> 32 Write 5x=y in logrithmic form x= log5y The bottom number remains the bottom and the other two switch sides … … …

  12. Typing log2x + log39 into calculator Writing 3logx2 + 1/2 logxy – 5 logxzas one log Logx23+ log2y1/2 – logxz5 … … … … …

  13. X varies directly as the square of m x = km2 n varies inversely as the square root of m n = p varies jointly as n, cube of q, and inversely as w P=knq3 w … … …

  14. f(x) = x2 – 6xg(x) = x – 3 Find g o f(-3) Find f(g(x)) or f o g(x) =(x-3)2– 6(x-3) f(-3) = (-3)2 – 6(-3) = 27 =(x-3)(x-3) – 6(x-3) g(27) = (27) – 3 = 24 =x2–3x–3x+9–6x+18 =x2–12x+27 …

  15. f(x)=5x – 2. Find f-1(x) Inverse y=5x – 2 x + 2=5y x=5y – 2 (switch x and y and solve for y) (1/5)x + (2/5) =y or f-1(x)= Or look at table of original graph and find (0,-2),(1,3) and then look for (-2,0) and (3,1) on table of answers …

  16. Vertical Asymptotes # has graph of & error on table Always x= … Holes Error on table but NO on graph Horizontal Asymptotes Set TABLE to 10000 and look at y values. (E-07 is 0) Always Y= … … …

  17. Regression Steps • Turn diagnostic on: 2nd . Scroll to DiagnosticON ENTER 2. STAT EDIT put the numbers in. 3. STAT  Choose Regression Linreg for Lines Quadreg for Quadratics Expreg for Exponential (Look for r2 to be closest to 1) 4. Write down equation on paper. 5. Input equation into y= 6. Look at the table

  18. Solve: x + 2y = 12 2x = 13 + 7y x + 2y = 12 2x – 7y= 13 -7y to the left side [A]-1[B] (10,1) x=10, y=1 …

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