FC: ACT Skill Scrapbook Connor Wise, 1st Period, 9/25/12
1: Table of Contents pg.1 | pg.: 2-3: Use the Answers 4-5: Super Easy Algebra 6-7: Algebraic Manipulation 8-9: "Mean" Means Average 10-11: Geometry: Angles 12-13: Geometry: Parallel Lines 14-15: Geometry: Triangles 16-17: FOIL 18-19: Vocab 20-21: Vocab Cont. 22-23: Multiples Vocab 24-25: Graphing Vocab 26-27: Slaloming Slope: I 28-29: Slaloming Slope: II 30-31: Using Charts and Graphs
2: Use the Answers | You can use this method when fractions, pi, or square roots. It works best when there are variables and unknowns in the question and numbers in the answers. You plug the numbers into the variables and unknowns and see which on is correct.
3: Answer: D you plug in the answers for n and you find out that 2 and -8 are the answers.
4: The ACT will put very easy algebra questions on here to try and catch you off guard. Don't over think these problems. They're the same as they were from 7th grade. | Super Easy Algebra
6: Algebraic manipulation seems the same thing as before, simple math. Except this time there will be an x variable or y variable in the answer. | Algebraic Manipulation
8: "Mean" Means Average | When the ACT asks for a mean of the numbers, it just means the average. They will also ask for the median and the mode. The median is simply the middle number of all the numbers in a group and the mode is the number that reoccurs most often in the group.
10: Geometry: Angles | Every ACT has a good 1 or 2 questions about angles on it. But the good thing is, you don't need to know all the postulates you learned. you only need a small handful.
12: Geometry: Parallel Lines | We don't need all that vocab from class because there's usually only 1 question about these on the ACT. we just need to know that parallel lines never touch, if a line goes through these lines is called a transversal and it forms 8 big and little angles. all big angles are equal to each other and the little angles are equal to each other.
14: Geometry: Triangles | In class you learned about 14 different theorems but on the ACT you only need 2. If a a triangle is isosceles(two equal sides) then the 2 angles opposite of each other are equal. If a triangle is an equilateral then all its angles equals 60 degrees.
16: FOIL | FOIL just means first, outside, inside, last. it basically just means multiply. say its (3x+2)(2x-4). You mult. 3x and 2x. Then 3x and -4. Next is 2 and 2x. And last is 2 and -4.
18: Vocab | Real #- any number constant- a letter in place of a number integer- and # w/o decimals or fractions even/odd- even:2 etc. odd: 1 etc. positive/negative- +: 1 -: -1 consecutive #s- #s in a row different #'s- #'s that are different prime- a number who's factor is 1 and itself units digit- the 1's term in a number
20: Vocab Cont. | Factors- numbers that divide into a number evenly GCF- largest factor shared by a group of numbers prime factors- the factors of a number that are also prime numbers
22: Multiples Vocab | LCF- the lowest number than is a multiple of several numbers multiples- all the numbers that are divisible by a certain number
24: Graphing Vocab | coordinate plane- graph chart Cartesian plane- fancy term for normal grid ordered pair- (x,y) x, y intercept- a value where the line crosses an x or y axis defined/undefined- regular numbers are defined something like 2x-5/0 is undefined
26: Slaloming Slope: I | use this formula to find slope y1-y2/x1-x2. Slope measures the steepness of a line. Its also called rate of change. Can either be positive or negative and horizontal lines are equal to zero.
28: Slaloming Slope: II | Parallel lines have equal slopes ans perpendicular lines have negative reciprocal slope.
30: Using Charts and Graphs | There are all kinds of graphs and charts. Charts have info in rows and columns, pie graphs look like a pie, line graphs display info over a period of time and bar graphs display info of several products.