Finding Zeros - Alg 2

What is the ordered pair solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

Use the graph to determine the solutions.

• -1 and -3
• 1 and -3
• 1 and 3
• -1 and 3

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

f(x)=(x+4)(x-3)(x-2)
List the zeros for this function.

• x=-4, x= -3, x=-2
• x=-4, x=3, x=2
• x=-4, x=3, x=2
• x=4, x=3, x=2

How many zeros does the polynomial function
 P(x) = 3x⁴+4x-8 have?

• 1
• 2
• 3
• 4

How many negative zeros does the polynomial function
P(x) = x³+3x²-5x-15 have?

• 0
• 1
• 2
• 3

The degree of the polynomial determines the number of roots.

• True
• False

According to the Rational Root Theorem, what are the all possible rational roots? 
2x³ - 11x² + 12x + 9 = 0

• ±1,±2
• ±1,±3,±9
• ±1,±3±9,±1/2,±3/2,±9/2
• ±1,±2,±1/3,±2/3,±1/9,±2/9

Tags

CCSS.HSA.APR.B.3

Find all rational zeros, one zero has been given.
f(x) = x³-2x²-6x-45;   5

• 1,5,-5
• 5, (-3+i√2)/2, (-3-i√2)/2, 5
• 5,5,5
• (-3+3i√3)/2, (-3-3i√3)/2, 5

If you are missing an exponent in your polynomial you must put a zero as a coefficient place holder for that exponent

• True
• False