Pre-Calc Semester 1 Review

If f(x)= $\sqrt{-x+1}$  then find f(-3)

• f(-3)= $\pm$  2

• -2

• 2

• 2i

Which of these is not a function?

• (-1,2) (0,1) (1,3) (3,2)

• (1,1) (2,2) (3,3) (4,4)

• (1,0) (2,0) (3,0) (4,0)

• (-1,1) (2,3) (4,0) (-1,2)

 $U_1=$  10  $U_n=U_{n-1}+3$   is the recursive arithmetic sequence for which of these?

• 3, 6, 9, 12, 15

• 10, 13, 16, 19, 22

• 10, 30, 90, 270

• 10, 7, 4, 1, -2

 $\sum_{n=1}^52x+1$  

• 35

• 11

• 14

• 33

y-2=3(x+4) is in point-slope form. Change it to slope intercept form.

• y=3x+4

• y=3x+12

• y=3x+14

• y=3x+10

Find the linear model for (0,1) (2,3) (4,5) (7,9) and (11, 13)

• y=-1.1x+0.86

• y=1.1x+0.86

• y=1.1x-0.86

• y=1x+1

Define this geometric sequence explicitly 4, 16, 64, 256

• $U_n=256\cdot4^{n-1}$

• $U_n=4^{n-1}$

• $U_n=1\cdot4^{n-1}$

• $U_n=4\cdot4^{n-1}$

Solve  $x^2-3x=18$  

• 15

• 21

• 6 and -3

• -6 and 3

 $2x^2+4x+2$  Solve using the quadratic formula.

• 0

• -1

• -1 and 1

• No Solution

 $y=x^2+4x+1$  Find the Vertex.

• (-2,-3)

• (4,1)

• (-4,-1)

• (2,13)