Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = 7x20 - 9x14 - 4x11 + 2x2 - 3x
A. 1 or 3 positive; 0 or 2 negative
B. 3 positive; 2 negative
C. 1 or 3 positive; 1 or 3 negative
D. 0 or 2 positive; 0 or 2 negative
Answer: A
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Each line contains the given points. Find the slope of each line to determine if the lines are parallel, perpendicular, or neither.L1: (-4, 7) and (10, 15)L2: (9, -3) and (13, 4)
A. neither B. parallel C. perpendicular
Give the rectangular coordinates for the point.(2, 270°)
A. (0, 2) B. (0, -2) C. (2, 0) D. (-2, 0)
Write an equation using the variable x to represent any unknown quantity. Do not solve the equation.Bob is saving to buy a car. The total amount that he needs is $11,000. The amount that he has saved so far is $5000. Write an equation for which the solution is the amount that Bob needs.
A. 5000 - x = 11,000 B. 11,000 - x = 5000 C. 5000 + x = 11,000 D. 11,000 + x = 5000
Find a linear function whose graph has the given slope and y-intercept.Slope - 
, y-intercept 4
A. f(x) = - 
x + 4
B. f(x) = - 
x - 4
C. f(x) = 
x - 4
D. f(x) = 
x + 4