9.2.3 (day 1) Understanding Square Root 9-88. 9-89.
9.2.3 (day 1) Understanding Square Root Homework 9-88. Find the missing length or area. a. 15 cm 121 cm2 b. c. d. 20 ≈ 12.25 ft 9-89. Determine the positive value that makes each equation true. If the answer is not a whole number, write it as a square root, and then approximate it as a decimal rounded to the nearest tenth. a. If x2 = 36, x = ? x =6 b. If x2 = 65 , x = ? x ≈ 8.1 c. If x2 = 84, x = ? x ≈ 9.2 9-90. Use the rule y = –2x + 5 to answer the questions below. a. What is the slope of the line? -2 a. Where does the line cross the y-axis? (0, 5) d. If x2 = 13, x = ? x ≈ 3.6 9-91. Copy and complete each of the Diamond Problems below. The pattern used in the Diamond Problems is shown at right. 9-92. Identify which of the relationships shown below is not a function. Explain your reasoning. a. b. Table b is not a function 9-93. Kenneth claims that (2, 0) is the point of intersection of the lines y = –2x + 4 and y = x − 2. Is he correct? How do you know? He is correct