Write the equation in vertex form. Identify the vertex.y = x2 + 3x + 1
A. y = 
2 - 
; 
B. y = (x + 3)3 - 9; (-3, -9)
C. y = (x + 3)3 - 9; (3, -9)
D. y = 
2 - 
; 
Answer: D
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Add.-3 + (-17)
A. -20 B. -14 C. 20 D. 14
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 1
D. 
Find the slope of the line going through the given pair of points.(-2, 6) and (-9, -8)
A. 
B. 8
C. 
D. 2
Refer to the following recipe to first estimate the answer and then use multiplication or division to find the exact answer. Simplify. Old Grandma's Fork Cookies 1
cups brown sugar 1
cups white sugar 1
cups shortening 1 pinch salt 3 eggs 2
tsp soda 2
/> tsp cream of tartar 1
tsp vanillaCream sugars and shortening. Beat in remaining ingredients. Add flour to stiffen like regular cookie dough. Roll into balls, then flatten with a fork. Cook until brown.Find the amount of white sugar needed if you take 
times the recipe.
A. Estimate: 3 cups
Exact: 3 cups
B. Estimate: 3
cups
Exact: 5 cups
C. Estimate: 6 cups
Exact: 3
cups
D. Estimate: 4 cups
Exact: 3
cups