Find the inverse of the function.f(x) = e-x + 2
A. f-1(x) = -ex - 2
B. f-1(x) = -ln(x - 2)
C. f-1(x) = ln 2 - ln x
D. f-1(x) = ex - 
Answer: B
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Write the expression with positive exponents only. Then simplify, if possible.5-1 + 8-1
A. 2
B. 
C. - 
D. 
Write the best-fit linear model for the data.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). Find a linear function that approximates the number of products sold as a function of the cost of advertising. 
A. y = 55.8 - 2.79x B. y = -26.4 - 1.42x C. y = 26.4 + 1.42x D. y = 55.8 + 2.79x
On the coordinate plane below, plot the points with the given coordinates.A(5, 5), B(-3, 4)
A. 
B. 
C. 
D. 
Use the discriminant to determine whether the quadratic equation has two unequal real solutions, a repeated real solution, or no real solution without solving the equation.x2 + 3x + 3 = 0
A. repeated real solution B. two unequal real solutions C. no real solution