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SAT Prep LP 5 Flashcards | StudBud

Explore/SAT Prep LP 5

What is equal to (5+12i)-(9i2-6i)?

F(x)=(x+3)(x-1). Which interval contains the x-coordinate of the vertex?

SAT Prep LP 5

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Quadratics

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Questions 5

Answers

1
F(x)=(x+3)(x-1). Which interval contains the x-coordinate of the vertex?
-3<x<1
-4<x<-3
1<x<3
3<x<4
2
What is equal to (5+12i)-(9i²-6i)?
-4-6i
-14-18i
4+6i
14+18i
3
Which is equivalent to x²+6x+4?
(x+3)2+5
(x+3)2-5
(x-3)2-5
(x-3)2+5
4
If (ax+3)²=36 and x=-3 is a solution to the equation, what is a?
-1
-5
-11
0
5
1/3(x²)-2 can be written as 1/3(x-k)(x+k). What is k?
√6
2
√2
6