Determine the slope and y-intercept of the line represented by the given equation.9x + y = 8
A. m = 
; y-intercept is (0, 
)
B. m = 9; y-intercept is (0, 8)
C. m= -9; y-intercept is (0, 8)
D. m = - 
; y-intercept is (
, 0)
Answer: C
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Find the equation for the plane tangent to the parametrized surface S at the point P.S is the sphere r(?, ?) = 3 cos ? sin ?i + 3 sin ? sin ?j + 3 cos ?k; P is the point corresponding to 
.
What will be an ideal response?
Answer the question.What complex number is the common cube root of -i and fourth root of 1?
A. i
B. -i
C. 
D. 
Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62 B. 0.26 C. 0.22 D. 0.50
Solve.The sales for a gaming console for various years are listed in the table below. 
Let s represent the sales (in billions of dollars) at t years since 1995. Use your graphing calculator to determine the quadratic regression equation for this data set.
A. s = 0.20t2 - 1.50t + 3.02 B. s = 0.065t2 - 0.42t + 0.84 C. s = 0.065t2 - 0.68t + 1.95 D. s = 0.20t2 - 0.70t + 0.81