Find the quantity indicated.y varies directly as x. Find x when y = 63 and k = 7.
A. x = 
B. x = 7
C. x = 9
D. x = 56
Answer: C
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Let T denote the temperature, in degrees, of a cup of coffee t seconds after it is placed on the counter to cool. Let 
denote, the difference, in degrees, between the temperature of the coffee and room temperature. Then D satisfies the equation of change
.
?
A: What can you conclude about the function 
?B: If the temperature of the coffee is initially 186 degrees, find a formula that gives D in terms of t. Write your answer using the alternative form for an exponential function.C: Find a formula that gives T in terms of t.
What will be an ideal response?
Solve.A square shed covers an area of 789 sq ft. What is the length of each side of the shed? (Round to the nearest tenth.)
A. 197.3 feet B. 188.2 feet C. 28.1 feet D. 32.4 feet
A function of x is depicted in the graph. Find any input values that produce the indicated output.f(x) = -4
A. {x| -4 < x < -3} B. {x| -4 < x ? -3} C. {x| -4 ? x ? -3} D. -3
Solve.(3p + 4)2 = -12(3p + 4) - 35
A. - 
, - 3
B. 1, 
C. 
, 3
D. 
, - 