Use a graphing calculator to find the y-intercept(s).y = x2 + 7
A. y-intercept (0, 0)
B. y-intercept (7, 0)
C. y-intercept (0, 7)
D. No y-intercept
Answer: C
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Write a fractional rate. Simplify the rate to a unit rate and write it as a phrase.The city where Lu Na lives has a population of 2,485,355 people and an area of 166.7 square miles. What is the unit rate in people per square mile (the population density)?
A. 
; 15,655 people per square mile
B. 
; 0.0000671 people per square mile
C. 
; 414,308,679 people per square mile
D. 
; 14,909 people per square mile
Solve the problem.Find the total area of the shaded rectangles.
A. x2 + 2x + 2 B. x2 + 3 C. x2 + 2 D. x2 + 3x + 2
Decide whether or not the ordered pair is a solution to the equation.y = -3; (-1, 5)
A. Yes B. No
Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.sin2 25° + cos2 25°
A. -1 B. 1 C. 0 D. 2