the ma NAME : CLASS : Unit 1 Quiz 1 Key Features of Functions 20 Questions DATE : What type of function is shown? A exponential B quadratic C linear D square root 2 Which parent function matches the graph? A y = 3/ (x) B y = 1x1 C ! y = x 2 D y = abx 3 . This function has a: A Neither B Maximum C Minimum D BothPeriod Name Date: woowise functions Math 4 Name Worksheet 2.8 Scatter Plots Date Period Use scatter plots to decide the model of best fit, then answer the questions. 3 37 27 124 14 19 23 23 29 2 What is the equation of best fit? (the equation not the type of equation) b. What is the correlation coefficient, " ? c. Find y if x = 35. 52 10 49 13 17 41 37 32 What is the equation of best fit? (the equation not the type of equation) PPP What is the comrelation coefficient, "? Find {(5) 0 1 2 3 4 415 54.6 15 63.2 55.8 49.7 61.1 What is the equation of best fit? (the equation not the type of equation) What is the comelation coefficient, "? c. Findy if x =6 4. A hospital lab worker is watching a blood culture grow. He collects his data in two 12 4 6 8 10 13 15 24 38 61 82 2 What is the equation of best fit? (the equation not the type of equation) What is the comelation coefficient, r ? c. How large will the sample be in 24 hours? 5. A cannon is fired and the projectile is calculated in the following table. Time 1 2 13 4 15 Height 3 72 109 114 87 28 What is the equation of best fif? (the equation not the type of equation) What is the correlation coefficie C. What is f(4.3) d. What is the maximum height of the projectile? e. When will the projectile hit the ground? (hint: x-intercept that makes sense)y 4 What is the maximum or minimum point for the curve? maximum at ( 0, 4) B minimum at ( 0, 4) C minimum at ( 0, -4) D maximum at ( 0, -4) 5. The blue dot on this graph represents a(n)... A Absolute Minimum B Relative Minimum C Absolute Maximum D Relative Maximum 6. What is the y-intercept of the line? A (0,1/2) B (0,1) C (0 , -1/2 ) D (0, -1) 7. -X.. ...... . What is the x- intercept of the line? 8 . ..............;. A ( -1, 0) B (1, 0) C (-2, 0) D (2, 0)\fNAME: even What is the range of the graph? 1