Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 
B. x = 
C. x = 
D. x = 
Answer: C
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Find a linear equation whose graph passes through the given points. Write the equation in slope-intercept form.(-4, 7) and (1, -7)
A. y = - 
x - 
B. y = 
x - 
C. y = - 
x - 
D. y = 
x - 
Solve the problem.Find the equation of the line tangent to the curve y = x ln x2 at the point 
A. y = 2x - 2 B. y = x - 1 C. y = 3x - 3 D. y = 2x + 1
List the ordered pairs from the table.Sales at the University Bookstore
A. (1, 670,000), (2, 190,000), (3, 1,090,000), (4, 320,000) B. (320,000, 1), (1,090,000, 2), (190,000, 3), (670,000, 4) C. (1, 190,000), (2, 670,000), (3, 320,000), (4, 1,090,000) D. (670,000, 1), (190,000, 2), (1,090,000, 3), (320,000, 4)
Determine whether the following is a difference of squares.x2 - 81y2
A. No B. Yes