Combinations of FUNctions

f(x)=3x+5

g(x)=x²

f(x)+g(x)

• 4x²+5

• 3x³⁺⁵

• x²+3x+5

• x²+8x

Tags

CCSS.HSF-BF.A.1B

f(x)=3x+5

g(x)= x²

g(x)-f(x)

• x²-3x-5

• x²-3x+5

• x²-5x-3

• i don't want to play this game

Tags

CCSS.HSF-BF.A.1B

f(x)=x²

^g(x)=x-3

^{(g x f)(-2)}

• 1

• dude i have no idea what is going on

• 81

• 9

Tags

CCSS.HSF-BF.A.1C

g(x)=2x

h(x)=x²+4

(h x g)(1)

• 8

• mystery box. maybe it's the right answer, just a blessing for those who don't want to write out their math. maybe not. it's up to you. what's your choice?

• 12

• 9

Tags

CCSS.HSF-BF.A.1B

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

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

Tags

CCSS.HSF-BF.A.1B

f(x) = x + 5 and g(x) = x² - 2x + 3
Find f(x) * g(x)

• x³ + 3x² - 7x + 15
• x³ - 2x² + 15
• x³ + 3x² - 10x + 15
• x³ - 3x + 15

Tags

CCSS.HSF-BF.A.1B

• 9 - √5
• √14
• 16
• 4

Tags

CCSS.HSF-BF.A.1C

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

Tags

CCSS.HSF-BF.A.1C