algebra 1---------------functions and graphs

© 2009 -2011 tutorco.com 1 Q1. If the line through (3, y) and (2, 7) is perpendicular to the line through (-1, 4) and (0, 6), then what is the value of y? A. 9 B. -6.5 C. 7.5 D. 6.5 Q2. Which rule describes the relationship between the input and output in the table shown? Input Output 4 7 5 8 6 9 7 10 8 11 A. Output = Input + 3 B. Output = Input -3 C. Output = Input + 6 D. Output = Input ALGEBRA 1 TOPIC: FUNCTIONS AND GRAPHS Al_1_4_Pre © 2009 -2011 tutorco.com 2 Q3. If f(x) = 0.62x + 1.7, then find the value of f(9) and f(10). A. 8.43, 10.05 B. 8.28, 9.40 C. 7.28, 7.90 D. 6.78, 8.40 Q4. Which graph best suits the equation y = 2x? A. Graph 3 B. Graph 2 C. Graph 1 D. Graph 4 © 2009 -2011 tutorco.com 3 Q5. The scatterplot shows the details of a survey by John on population of 10 cities and the number of educational institutes in these cities. A. There will be no correlation. B. The correlation will not change. C. The correlation will be weaker. D. The correlation will be -15.