Grade 8 (quiz 3)

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The Lord’s Wisdom Academy of Caloocan,Inc. 1162 Santolan St. Corner Guyabano St. Area D.,Brgy. 178 Camarin, Caloocan City JUNIOR HIGHSCHOOL DEPARTMENT Math 8 Quiz No. 3 (2nd Quarter) Name: ______________________________ Grade/Section: Score: ________ Teacher: _________________Date: __________________Parent’s Signature_______ I. Choose the letter of the best answer. Write your answer before each number. ____1. What do you call to the set of ordered pairs (x,y) that is the solution set of the first degree of polynomial? A. Rational Function C. Linear Function B. Rational expression D. Quadratic Function ____2. Which of the following is the solution of 5x + 2y = 0? A. (-2,5) C. (2,2) B. (2,5) D. (5,5) ____3. Given 3x – y = 0, which of the following ordered paired is not the solution in the equation? A. (1,3) C. (3,12) B. (2.6) D. (4,12) ____4. What are the values of A, B and C in the equation 4x + 6 = 5? A. 4, 6, 5 C. 5, 1, 0 B. 5, 6, 4 D. 5, 0, -1 ____5. What is the slope of the line passing through (3,2) and (-4.-2)? A. 4/7 C. 4 B. 7/4 D. 7 II. Tell whether the equation is a FUNCTION or NOT. __________1. 5x +5y = 0 __________4. 6 + 3x – 4y = 0 __________2. 4 – 8y = 5 __________5. 12x + 8y – 8y = 12 __________3. -5x + 5 = 0 III. Find the slope of each line that passes through the two points and determine if the line is increasing function, decreasing function, constant function or not a function. Points Slope Function 1. (-4, -2), (4,6) ___________ ___________ 2. (-5,-2), (2, 5) ___________ ___________ 3. (5, 0), (-5, 0) ___________ ___________ 4. ( 0, 6), ( 0, 5) ___________ ___________ 5. (-9, 7), (4, -8) ___________ ___________ IV. Graph the following. 1. Use the intercept method to graph 2. Use Slope intercept method to y = -4x + 5 6x – 4y = 12. x-intercept = slope = y-intercept= y-intercept = two points = rise= run =

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