11/9 Do Now

What is the y-intercept of the function?

• (0,2)
• (0,3)
• (0,1)
• (0,-2)

Tags

CCSS.HSF-IF.C.7E

Identify which functions are exponential.

• f(x) = 2x - 5

• g(x) = 3^x

• k(x) = 3x⁴ - 6x + 9

• 
  

  $k\left(x\right)=3\cdot\left(\frac{1}{2}\right)^x$

Tags

CCSS.HSF.LE.A.1

Which function is exponential?

• f(x)
• h(x)
• g(x)

Tags

CCSS.HSF-IF.C.7E

Which equation corresponds to the graph below.

• $k\left(x\right)=3\cdot\left(\frac{1}{2}\right)^x+4$

• $f\left(x\right)=3\cdot2^x+4$

• $f\left(x\right)=3\cdot2^x-4$

• $m\left(x\right)=3\left(\frac{1}{2}\right)^2-4$

Tags

CCSS.HSF.LE.A.2

Given the equation below determine the y-intercept.

 $y=3^x$  

• (0, 1)

• (0, 3)

• x= 0

• y = 0

Tags

CCSS.HSF-IF.C.7E

What is the domain?

• $\left(-\infty,\infty\right)$

• $\left(0,\infty\right)$

• $\left(-\infty,0\right)$

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

• y =  ^_(x + 2)(x - 1)²
• y = -(x - 2)(x + 1)²
• y = (x - 2)(x + 1)²
• y = -x³

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Write a 4th degree polynomial function with:
*a positive leading coefficient
*zeros: 9, 3, -2, 0

• y = x(x - 9)(x - 3)(x + 2)
• y = x(x + 9)(x + 3)(x - 2)
• y = -x(x - 9)(x - 3)(x + 2)
• y = -x(x + 9)(x + 3)(x - 2)

Tags

CCSS.HSA.APR.B.3

f(x) = (x+2)(x-3)²(x-4)

Which choice best describes the zeros?

• -2, 3 (multiplicity 2), 4

• -2 (multiplicity 2), 3, 4

• 2, -3 (multiplicity 2), -4

• 2 (multiplicity 2), -3, -4

Tags

CCSS.HSF-IF.C.7C

What are the increasing intervals?

• (- ∞, -1) & (-1, 0) & (0, 1) & (1, ∞)

• (3, 4) & (3, 8)

• (- ∞, -1) & (1, ∞)

• (-1, 0) & (1, ∞)

Tags

CCSS.HSF-IF.C.7A