Find the intervals on which the function is continuous.y = 
A. discontinuous only when x = -7 or x = 8
B. discontinuous only when x = 7
C. discontinuous only when x = 7 or x = 8
D. discontinuous only when x = -8 or x = 7
Answer: C
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Solve the problem.In a certain coastal basin, the sea water contains 3.9 grams of salt per 1000 milliliters of water. How many grams of salt would be in 3 liters of the sea water?
A. 117 grams B. 0.117 grams C. 1170 grams D. 11.7 grams
Solve the problem.Suppose that an object's acceleration function is given by 
The object's initial velocity is 4, and the initial position is 9. Find the object's displacement as a function of time.
A. s = 
t3 + 3t2 + 4t
B. s = 
t3 + 3t2 + 9t + 4
C. s = 2t2 + 6t + 4
D. s = 
t3 + 3t2 + 4t + 9
Provide an appropriate response.Explain why the vertex of a parabola must lie on its axis.
What will be an ideal response?
Solve and check.18n2 + 60n = 0
A. - 
, 0
B. - 
C. - 
, 60
D. 0