Answer the question.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.
You might also like to view...
Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 0 and x = 3 using the midpoint sum with two rectangles of equal width.
A. 16.875 B. 8.4375 C. 12.5 D. 3.375
Find the value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.
Find cot ?.
A. 
B. 
C. 
D. 
Subtract.(6x8 + 8x7 - 7x3 + 7) - (9x8 - 4x5 + 2x3 - 4)
A. 3x8 + 8x7 + 4x5 - 9x3 + 11 B. -3x8 + 8x7 - 4x5 - 9x3 + 11 C. 3x8 + 8x7 - 4x5 - 9x3 + 11 D. -3x8 + 8x7 + 4x5 - 9x3 + 11
Points P and Q have coordinates P(m, n) and Q(3m, 3n). Find, M, the midpoint of PQ. Then use the distance formula to show that PM = 1/2 (PQ).
What will be an ideal response?