Find the slope of the tangent line to the graph at the given point.f(x) = 2x2 + x - 3 at (4, 33)
A. 17
B. 19
C. 15
D. 5
Answer: A
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Solve.In small firms in a certain country, 90% of full-time employees receive medical insurance benefits. Write 90% as a fraction.
A. 9
B. 
C. 
D. 1
Give all solutions of the nonlinear system of equations, including those with nonreal complex components. 2x2 + xy + 2y2 = 23x2 - 5xy + 3y2 = 3
A. {(1, 0), (-1, 0)} B. {(1, 0), (-1, 0), (0, 1), (0, -1)} C. {(1, 0), (0, 1)} D. {(1, 0)}
Solve the problem.When a tow truck is called, the cost of the service is given by the linear function 
, where y is in dollars and x is the number of miles the car is towed. Find and interpret the slope and y-intercept of the linear equation.
A. m = 50; The cost of the service increases $50 every mile the car is towed. y-intercept: 3; The cost of the service is $3 if the car is not towed. B. m = 3; The cost of the service increases $3 every mile the car is towed. y-intercept: 50; The cost of the service is $50 if the car is not towed. C. m = 3; The number of miles the car is towed increases 3 miles for every dollar spent on the service. y-intercept: 50; The tow truck will tow the car 50 miles for no cost. D. m = 50; The number of miles the car is towed increases 50 miles for every dollar spent on the service. y-intercept: 3; The tow truck will tow the car 3 miles for no cost.
Graph the solution set of the system of inequalities.y < 3x + 1y > -x - 2
A. 
B. 
C. 
D. 