Find a set of parametric equations for the given Cartesian equation.y = 7x + 5
A. x = 5t, y = t + 7
B. x = 7t, y = t + 5
C. x = t, y = 7t + 5; x = 
, y = t + 5
D. x = t, y = 
+ 7
Answer: C
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A. 48 - 72i B. 18 - 92i C. 52 - 78i D. 22 - 98i
Solve the problem.A school has just purchased new computer equipment for 
The graph shows the depreciation of the equipment over 5 years. The point (0, 23,000) represents the purchase price and the point (5, 0) represents when the equipment will be replaced. Find and interpret the average rate of change in cost per year.
A. $4600 per year; the value of the equipment increases by $4600 per year during these years. B. -$23,000 per year; the value of the equipment decreases by $23,000 per year during these years. C. -$18,400 per year; the value of the equipment decreases by $18,400 per year during these years. D. - $4600 per year; the value of the equipment decreases by $4600 per year during these years.
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Factor out the greatest common factor.t(4 - m) + s(4 - m)
A. (t - s)(4 - m) B. (t + s)(4 - m) C. no common factor (except 1) D. t(4 - m) + s