Functions

• 3
• 1
• 4
• None of the Above

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

f(x) = 3x² - 2x + 1 and g(x) = x - 4. What restrictions, if any, are there for (f/g)(x)?

• no restrictions
• x ≠ -4
• x ≠ 4
• x ≠ 0

What's the name of the inverse of g(x)?

• f(x)
• f^-1(x)
• y
• g^-1(x)

When finding the inverse of a relation, 
1st you replace f(x) with y
2nd switch the x's and y's
What do you do next?

• solve for y
• replace y with f^-1(x)
• solve for x
• find the greatest common factor

What is the inverse of the given coordinates: (1, 2) (3, 8) (-3, 6)

• (1, 2) (3, 8) (-3, 6)
• (1, 2) (8, 3) (-3, 6)
• (-1, -2) (-3, -8) (3, -6)
• (2, 1) (8, 3) (6, -3)

g(x)=3x+4
h(x)=3x-1
Find g(h(x))

• -9x+11
• 4x²+4x
• 9x+1
• 9x+11

f(x) = 3x + 10
g(x) = x - 2
Find f(g(0))

• 16
• 4
• -4
• None of these.

If f(x) =2x² + 3x - 1 and g(x) = 3x,
find g(f(x)).

• 6x³ + 9x - 3x +1
• 6x³ + 9x² - 3x
• 6x³ + 9x - 3x - 1
• 6x² + 9x - 3

Tags

CCSS.HSF-BF.A.1C

The inverse has been reflected over which line?

• y = x
• y =1
• y = 0
• y = x + 1