Evaluate the expression graphically.f(-1)
A. -5
B. -4
C. -3
D. -2
Answer: B
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Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x > 0} range: all real numbers intercept: (1, 0) symmetry: none B. function domain: all real numbers range: {y|y > 0} intercept: (1, 0) symmetry: none C. function domain: {x|x > 0} range: all real numbers intercept: (0, 1) symmetry: origin D. not a function
Divide, if possible.-198 ÷ 9
A. - 
B. -22
C. -32
D. 22
Solve the problem.Find the pH of a solution with a hydrogen ion concentration of 10-4.3 moles per liter.
A. -4.3 B. 9.9 C. 5.7 D. 4.3
Solve the problem.A car rental agency charges $150 per week plus $0.30 per mile to rent a car. Express the weekly cost to rent the car, f, as a function of the number of miles driven during the week, x.
A. f(x) = 150x + 0.3 B. f(x) = 150.3 C. f(x) = 0.3x - 150 D. f(x) = 0.3x + 150