The graph of two equations along with the points of intersection are given. Substitute the points of intersection into the systems of equations. Are the points of intersection solutions to the system of equations (Y/N)?
A. Yes
B. No
Answer: A
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Write as a percent.
A. 111
%
B. 90%
C. 11
%
D. 1
%
The table below shows nation health care costs H, in billions of dollars, t years after 1970. t 0 10 20 30 40 H 76 258 717 1,403 2,650? A: Use exponential regression to model H as a function of t. Round your answer to two decimal places.B: Plot the exponential model along with the data points.C: According to the exponential model, when will national health care costs reach 4342.00 billion dollars? Report your answer as a year rounded to the nearest whole number.
What will be an ideal response?
Solve the compound linear inequality graphically. Write your answer in interval notation. 2 < 2b + 4 ? 10 
A. (-1, 3) B. [-1, 3) C. [-1, 3] D. (-1, 3]
Find the equation of the axis of symmetry of the parabola.f(x) = (x + 4)2 + 4
A. y = 0 B. y = 4 C. x = 4 D. x = -4