9.3.2 and 9.4.1

(L3) Given f(x)=x + 2 and g(x) = x - 5,             find (fg)(x)

• x² + 7x -10
• x² - 3x +10
• x² - 3x -10
• x² - 7x -10

(L3) Given f(x) = x² + 25 and g(x) = -x
find (fg)(x).

• x² - 25x
• -x³ + 25x
• x³ + 25x
• -x³ - 25x

• 2n + 2

• -2n - 2

• -2n + 2

• 8n - 6

• -5n - 4

• 7n - 5

• 5n + 4

• 5n - 4

f(x) = 3x - 4 and g(x) = 4x - 2. Find f(x) + g(x)

• (f+g)(x) = 7x + 2

• (f+g)(x) = -x + 6

• (f+g)(x) = 7x - 6

• (f+g)(x) = 7x - 2

f(x) = 2x + 4 and g(x) = 5x - 2. Find f(x) + g(x)

• (f+g)(x) = 7x + 2

• (f+g)(x) = -x + 6

• (f+g)(x) = 7x - 6

• (f+g)(x) = 7x - 2

Find the inverse of
f(x) = 1/4x - 7

• f^-1(x) = 4x + 7
• f^-1(x) = -4x + 28
• f^-1(x) = -4x - 7
• f^-1(x) = 4x + 28

Tags

CCSS.HSF-BF.B.4A

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3
• f^-1(x) = -1/4x - 3
• f^-1(x) = 1/4x + 3
• f^-1(x) = -4x - 3

Tags

CCSS.HSF-BF.B.4A

Find the inverse of the function
f(x) = 3x − 5

• f^-1(x)=3x +5
• f^-1(x)=(x+5)/3
• f^-1(x)=3y-5
• f^-1(x)=3y+5

Tags

CCSS.HSF-BF.B.4A

Are the following inverses of each other?

• True
• False

Tags

CCSS.HSF-BF.B.4B