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Question 1 Solve the problem. A deep sea diving bell is being lowered at a constant rate. After 10 minutes, the bell is at a depth of 300 feet. After 50 minutes the bell is at a depth of 1400 feet. What is the average rate of lowering per minute? Round your answer to the nearest tenth. 27.5 ft per min 22.0 ft per min 28.0 ft per min 0.04 ft per min 0 points Question 2 Determine the equation of the line described. Put answer in the slope-intercept form, if possible. Through (-2, -12), parallel to -9x + 4y = -10 y = - x + y = x - y = x - y = x + 0 points Question 3 Find the slope of the line containing the given points. (3, 9), (1, 9) not defined 0 2 -2 0 points Question 4 Find the slope of the line containing the given points. f(1.1) = 18.1 and f(-5.8) = -4.2 - - 0 points Question 5 Provide an appropriate response. Find a linear function, h, given h(-6) = -32 and h(7) = 20. h(x) = -4x - 8 h(x) = 4x - 8 h(x) = 8x - 4 h(x) = -4x + 8 0 points Question 6 Write equations of the horizontal and the vertical lines that pass through the given point. (8, -10) horizontal: x = 8; vertical; y = -10 horizontal: y = -10x + 0; vertical: x = 8y + 0 horizontal: y = x + 0; vertical: y = x + 0 horizontal: y = -10; vertical: x = 8 0 points Question 7 Determine whether the pair of lines is parallel, perpendicular, or neither. 12x + 4y = 16 21x + 7y = 32 Parallel Perpendicular Neither 0 points Question 8 Find the slope and the y-intercept of the equation. 5x + 7y = 55 ; - ; - ; ; 0 points Question 9 Determine whether the pair of lines is parallel, perpendicular, or neither. y + 12 = -4x 2y = 6x - 9 Parallel Perpendicular Neither 0 points Question 10 Write an equation in slope-intercept form for the line shown. y = x + 3 y = x - 3 y = 2x + 3 y = 2x - 3 0 points Question 11 Find the slope and the y-intercept of the equation. 2x + 9y = 28 -4 ; 4 ; ; - ; 0 points Question 12 Determine the slope, if it exists, of the graph of the given linear equation. f(x) = 7 + 4x m = -4 m = 4 m = 7 m = -7 0 points Question 13 Write a slope-intercept equation for a line with the given characteristics. m = 5, passes through (5, -1) y = 5x - 24 y = 6x + 27 y = 5x - 26 y = 5x + 25 0 points Question 14 Find the slope of the line containing the given points. (6, 9) and (1, 7) - 0 points Question 15 Find the slope of the line containing the given points. , not defined 2 -2 -1 0 points Question 16 Write a slope-intercept equation for a line with the given characteristics. Passes through (2, -7) and (6, -2) y = - x - y = x - y = x - y = - x - 0 points Question 17 Determine whether the pair of lines is parallel, perpendicular, or neither. 3x - 2y = 16 2x + 3y = 16 Parallel Perpendicular Neither 0 points Question 18 Write a slope-intercept equation for a line with the given characteristics. m = -7, passes through (-8, 1) y = 7x - 53 y = -7x - 55 7x +y = 55 y = -7x + 62 0 points Question 19 Solve the problem. Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $520 to set up for production, and variable costs of $36 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Marty's Company in producing x jackets, and use the equation to find the total cost of producing 89 jackets. $3736 $3716 $3724 $3704 0 points Question 20 Solve the problem. In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.50 as soon as you get in the taxi, to which a charge of $1.95 per mile is added. Find an equation that can be used to determine the cost, C(x), of an x-mile taxi ride. C(x) = 4.45x C(x) = 2.50 + 1.95x C(x) = 1.95 + 2.50x C(x) = 2.95x

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