Solve the problem.The farther someone is from a light source, the less intense its light. The equation I = 
approximates the light intensity from light source Y and I = 
approximates the light intensity from light source Z, where d is measured in meters and I is measured in watts per square meter. Find an expression for the sum of the intensities of light from sources Y and Z.
A. 
B. 
C. 
D. 
Answer: C
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Find a formula for the function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Determine whether the ordered pair is a solution for the equation.
; y = 
x + 
A. Yes B. No
Determine the discriminant of the quadratic equation. Use the value of the discriminant to determine whether the quadratic equation has two rational solutions, two irrational solutions, one repeated real solution, or two complex solutions that are not real.2x2 + 2x = 3
A. Two complex solutions that are not real B. Two rational solutions C. One repeated real solution D. Two irrational solutions
Find the mode or modes for the list of numbers.Number of samples taken each day: 5, 9, 34, 3, 2, 8, 45, 1, 4, 16
A. No mode B. 8 samples C. 9 samples D. 12.1 samples