C278 - COLLEGE ALGEBRA PRE-ASSESSMENT TEST QUESTIONS AND ANSWERS 2024

Which number is irrational a. 23 b. -√7 c. √121 d. -5 b. -√7 Which graph corresponds to the set of real numbers {-4.25, -π, , 2.75}? <__•|____•|______________________•|__•|____> -4 -3 -2 -1 0 1 2 3 2 3 The following formula F= 9/5C + 32 is used to convert a Celsius ( C) temp to its corresponding Fahrenheit ( F). What is the temp in F if temp is -10 Celsius? a. 14.0 F b. 26.4 F c. 50.0 F d. 37.6 F 14.0 Fahrenheit (F) 9/5(-10) + 32 Driver A travels west from Boston at a constant speed of 60 mph. Driver B leaves three hours later from Boston and follows Driver A at a constant speed of 72 mph. How many hours take Driver B to catch Driver A? a. 12 hours b. 15 hours c. 18 hours d 20 hours 72 x 15 hours = 1080 miles 60 x 18 hours = 1080 miles Answer 15 hours What is the solution to x + 4 < 4 x - 5 expressed in interval notation? a. { - ∞ ,3} b. {{43},∞ } c.{3,∞ } d. {9,∞ } ( {3,∞ } ) Which graph represents the following equation? y = (frac{1}{2}x - 4) Graph 4 What is the slope of the line that passes through the points (0,-8) and (1/2, 4) a. -24 b. -8 c. 8 d. 24 Answer 24 What is the equation of the line that passes through the points (-3,7) and (5,-1)? a. y = −x + 10 b. y = −x + 4 c. y = −x + 3 d. y = −x + 7 y = −x + 4 When the price for admission to a sporting event was $100 per ticket, 50,000 people attended the event. When the price increased to $108, the attendance decreased to 45,000 people. Which linear equation represents the attendance ( d) in terms of the admission price ( p)? a. d = -625 p + 112,500 b. d = 625 p − 12,500 c. d = -625 p − 12,500 d. d = 625 p + 112,500 d = -625 p + 112,500