Provide an appropriate response.The equation y = x2 is satisfied by the points (2,4) and (-2,4). A horizontal line may be drawn between these two points. Is y = x2 a function? Why or why not?
What will be an ideal response?
It is a function because each x-value gives one and only one y-value. It passes the vertical line test.
Mathematics
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Solve the problems.Ms. Clark bought a house five years ago for $185,000. Today it is valued at $175,000. Find the percent decrease in value of the house.
A. 1,750% B. 94.6% C. 5.4% D. 5.7%
Mathematics
The function f is one-to-one. Find its inverse.f(x) = x2 + 2, x ? 0
A. f-1(x) = 
- 2, x ? 0
B. f-1(x) = 
, x ? 2
C. f-1(x) = 
, x ? -2
D. f-1(x) = 
- 2, x < 0
Mathematics
Decide what number must be added to the binomial to make a perfect square trinomial.x2 - 
x
A. 
B. - 
C. - 
D. 
Mathematics
Provide an appropriate response. Graph the numbers -2 and 7 on the following number line.
A. 
B. 
C. 
D. 
Mathematics