Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = x2 + x - 9
A. f(x) = (x - 
)2 - 
vertex: 
B. f(x) = (x + 
)2 - 
vertex: 
C. f(x) = (x -1)2 - 7
vertex: (1, -7)
D. f(x) = (x + 1)2 - 9
vertex: (-1, -9)
Answer: B
You might also like to view...
Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the parabola y = 36 - x2 and the x-axis
A. 
= 0, 
= 
B. 
= 0, 
= 
C. 
= 
, 
= 0
D. 
= 0, 
= 
Solve the problem using the strategy of your choice.Can you place the digits 1 through 9 into a 3 x 3 square so that each row, column, and diagonal add up to the same total? Four digits have been inserted.
A. 
B. 
C. 
D. 
Solve.In the formula HP = 
, find the diameter of the bore if a six-cylinder engine has a horsepower rating of 260. Assume D = diameter and N = the number of cylinders. Round to the nearest tenth.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.If v = -2i + 2j, find 
.
A. 2
B. 4
C. 8
D. 2