4. = 4 Ata local video store, Angel rented two movies and three games for a total of $20. The next day, she rented three movies and 2 games for a total of $15, How ome eon much money, in dollars, is needed to rent a combination of one movie and one game? S| fae PO ai ea The table above shows some values of a linear A)7 function f. If b—a=9, what is the value of k? B) 10 : AT 12 ‘ B)8& b) 16 » o9 D) 12 CLASSES STUDENTS ARE TAKING Gener a alec 30% Boys 35 Algebra Girls 23 55 16% Total 100 Caleulus Ted surveyed a random sample of 100 students in his high school to see if they were for or against purchasing an additional grand piano for the school music concert. The incomplete table above shows the results of his survey. Based on this infor about how many of the 800 students in the school would be expected to be against the purchasing the ation, The circle graph above shows the pereent of which 200 students are taking each subject. How many more students are taking Algebra than Geometry? a A) 30 cD me B) 264 32 0 36 ©) 320 D) 350 D) 38v Questions 5 and 6 refer to the following information. Average Height for Boys 50 45 40 Average height (in inches) 1 2 3 4 5 6 Age (in years) The graph above shows the average height for boys, ages 0 to 7 in a certain state of the last year What is the annual average growth, in inches, between ages 2 and 7? A) 2 B) 5 o10 D) 12 By what percent does the average height increase from age | to age 7? A) 60 B) 50 ©) 40 D) 30 Note: Figure not drawn to scale. Inthe xy-plane above, line ¢ is parallel to line m. What is the value of b? 7 ae 1 B) -14 © -21 D) -28 x? -Bx+ 0 The equation of a circle in the xy-plane is shown above, What is the area of the circle? A) 2n B) 47 ©) 8 D) 16x4 If f(x-5)=3x value of f(-2)? 10 for all values of x, what is the A) -16 B) -10 o = D) -1 Lee's family starts a trip with a supply of 20 pounds of coffee. When they arrive at their destination, 8 days later, they have found only 4 pounds left They consume coffee at a constant rate per day. If T is amount of coffee remaining as a function of days d, which of the following represents the funetion Td)? A) T(d)=8d B) T(d)=2d +20 C) T(d)=20-8d D) T(d)=20-2d Chang's SAT Math Tes! 4 8x4 y=300 The elevator in a trade center is moving down from a height of 300 feet. The equation above can be used to model the height of the elevator, y, above the lobby, where xis the time in seconds. If the ordered pair (x,y) satisfies the equation, what does (37.5, 0) mean? A) The elevator stops at a height of 37.5 feet. B) The elevator is moving down at a constant speed of 37.5 feet per second. C) The elevator moves 37.5 feet from the lobby. D) The elevator takes 37.5 seconds to move down to the lobby. ‘Thompson invested $10,000 in stocks for two years. During the first year he suffered a 30 percent loss, but during the second year the remain showed a 30 percent gain. Over the two-year period, how did Thompson's investment change? investment A) His investment did not change. B) His investment increased by 10 percent. C) His investment decreased by 10 percent. D) His investment decreased by 9 percent. =4 The graph of ax + by in the xp-plane contains Points from each of Quadrants I, Il, and III, but no points from Quadrant IV. Which of the following, ‘must be true? A) a>Oand b>0 B) a>Oandb<0 ©) a0 D) a 2), for the consultation, which of the following represents the total cost? A) C(x) =300 B) C(x)=300+100x 8) Cty) 300 + 202 ©) C(x)= 300+ 200 D) C(x) =300+ |x Ifthe equation above has @ real solution set, which of the following must be true? 1 k20 I k<0 UL. x>0 A) Lonly B) Honly CC) Land It only D) Mand tt! only