Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.y = -x2 + 2x + 8

A. vertex (1, - 9); 
x-int: (-2, 0) and (4, 0); 
y-int: (0, 8)

B. vertex (1, 9); 
x-int: (-2,0) and (4, 0); 
y-int: (0, 8)

C. vertex (1, 9); 
x-int: (-4, 0) and (2, 0); 
y-int: (0, 8)

D. vertex (- 1, 9); 
x-int: (-4, 0) and (2, 0); 
y-int: (0, 8)


Answer: B

Mathematics

You might also like to view...

A hypothesis test is to be performed. State the null and alternative hypotheses.A health insurer has determined that the "reasonable and customary" fee for a certain medical procedure is  They suspect that the average fee charged by one particular clinic for this procedure is higher than  The insurer wants to perform a hypothesis test to determine whether their suspicion is correct.

A. Null hypothesis: mean fee < $1200 Alternative hypothesis: mean fee > $1200 B. Null hypothesis: mean fee > $1200 Alternative hypothesis: mean fee = $1200 C. Null hypothesis: mean fee = $1200 Alternative hypothesis: mean fee ? $1200 D. Null hypothesis: mean fee = $1200 Alternative hypothesis: mean fee > $1200

Mathematics

Give the number of rows in the truth table for the compound statement.~p ? ~q

A. 8 B. 2 C. 16 D. 4

Mathematics

Use the table to solve the problem.The cost, in dollars, of a cab ride for x miles is given by the function f in the following table. What is the cost of a 4-mile cab ride?

A. $4.05 B. $4.65 C. $5.25 D. $3.45

Mathematics

Write the ratio or rate in simplest form.49 revolutions in 42 seconds

A.
B.  
C.
D.  

Mathematics