Determine whether the equation is a function.y = x4
A. function
B. not a function
Answer: A
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Find the equation of the line described, and express your answer in the specified form.Perpendicular to the line y = 
x + 7; passes through the point (5, -4); slope-intercept form
A. y = - 4x - 16
B. y = 4x - 16
C. y = - 4x + 16
D. y = - 
x - 4
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) = -8x4 - 3x3 - 9x2 - 5x + 2
A. 1 positive; 1 or 3 negative B. 1 positive; 2 negative C. 0 or 2 positive; 1 or 3 negative D. 1 positive; 1 negative
Evaluate the exponential expression.(0.15)2
A. 0.0225 B. 0.225 C. 0.3 D. 0.00225
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 3
B. 
C. 3
D. 