Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
TCAP Some Reminders Carefully read each question Read the entire question and all the answer choices Underline or circle key words….NOT DO the work… …draw pictures …write the problem DON’T just do it on a calculator DO all calculations twice (remember the calculator only does what you put in it!) Positive – Negative Key Negative Numbers Press this key AFTER the number Then CHECK display Tricky Expressions Evaluate –(-ab)3 when a = -2 and b = -1 Insert values for varibles, then simplify a b -1 (-1 x (-2) x (-1))3 -1 ( 2 x (-1) )3 -1 (-2) 3 -1 x 8 -8 Follow order of operations Percent Key Percent Key Only use this key to make a percent number a decimal to use for computation Percent Key This key DOES NOT change a decimal into a percent!!!! Fraction Keys Mixed Numbers Fractions 1 2/3 2/3 1 unit 2 / 3 2 / 3 Fraction Keys - Simplify Simplify and = Reduce proper fractions like: 2/4 14/28 25/1000 A b/c Changes improper fractions to mixed numbers 12/4 15/1 199/54 Box and Whisker Plots Median Lower Quartile Lower extreme 25% 25% Upper Quartile 25% 25% Interquartile Range (75-35=40) 10 20 30 40 50 60 70 80 90 100 Upper extreme Exponents Square Any exponent 53 22 = 4 122 = 144 32 = 9 Key: 5 yx 3 = 53 = 125 Know the difference!! -X2 X2 The opposite X = -3 of x2 -3 x -3 = 9 X = -3 -3 x -3 = 9 opposite = -9 Area = 49 each side is 7 7 x 7 = 49 49 Key 49 then Square Roots Some numbers are not PERFECT SQUARE so the square root will not be a whole number 24 = 4.89 Proportions Look for words like: Ratio Rate Similar 15’ flagpole 28’ shadow 15 x 22 330 330/28 11.78 = x tall tree__ 22” shadow = 28x = 28x = 28x/28 =x Similar Triangles x 12 5 Find corresponding sides to write your proportion then solve!! 15 = 15 x = 60 x=4 Probability Number of Favorable Outcomes Number of Total Possible Outcomes Relationships of values Directly Proportion Y x y = Kx linear Inversely Proportional xy = k and y = k/x nonlinear Function Check Match type of relation with an equation. Directly Proportional A. y = x2 + 3 Linear Equation B. y = x –1 Inversely Proportional C. 24 = xy Nonlinear Equation D. y = -2x Function Check Directly Proportional; Inversely Proportional Linear, Non-linear A D C B x 2 y 5 x 2 y 12 x 2 y 12 x 2 y 4 3 6 3 8 3 18 3 9 4 7 4 6 4 24 4 16 Function Check Match type of relation with an equation. Directly Proportional; Inversely Proportional Linear, Non-linear A Not a straight line B Straight line and passes through (0,0) C Straight line but doesn’t pass through (0,0) D Not a straight line one value increases while the other decreases Y X Just Remember It’s not confusing!! You know this. Just make sense of the information given!