If f(x) = 3x - 5, then f(0) equals what?
f(0) = -5
Let f(x) = 4x - 1 and g(x) = 2x2 + 3. Then (f + g)(x) equals what?
(f + g)(x) = 2x2 + 4x + 2
Let f(x) = 4x - 1 and g(x) = 2x2 + 3. Then (f - g)(x) equals what?
(f - g)(x) = -2x2 + 4x - 4
Let f(x) = 4x - 1 and g(x) = 2x2 + 3. Then (f cdot g)(x) equals what?
(fg)(x) = 8x3 - 2x2 + 12x - 3
Let f(x) = 3x2 + 2 and g(x) = 2x. Then (f o g)(x) equals what?
(f o g)(x) = 12x2 + 2
If f(x) = 2x + 3, then f(-3) equals what?
f(-3) = -3
Let f(x) = -3x + 2 and g(x) = 5 - x. Then (f + g)(x) equals what?
(f + g)(x) = -4x + 7
Let f(x) = 4x - 1 and g(x) = 2x2 + 3. Then (g - f)(x) equals what?
(g - f)(x) = 2x2 - 4x + 4
Let f(x) = 3x + 5 and g(x) = x2. Then (f cdot g)(x) equals what?
(fg)(x) = 3x3 + 5x2
Let f(x) = 3x2 + 2 and g(x) = 2x. Then (g o f)(x) equals what?
(g o f)(x) = 6x2 + 4
This is the term for all of the x-values of a function.
Domain
Let f(x) = 3x + 5 and g(x) = x2. Then (f + g)(x) equals what?
(f + g)(x) = x2 + 3x + 5
Let f(x) = -3x + 2 and g(x) = -2x2 + 9. Then (f - g)(x) equals what?
(f - g)(x) = 2x2 - 3x - 7
Let f(x) = 2x2 + x - 3 and g(x) = x - 1. Then (f cdot g)(x) equals what?
(fg)(x) = 2x3 - x2 - 4x + 3
Let f(x) = 3x and g(x) = 2x + 4. Then (f o g)(1) equals what?
(f o g)(1) = 18
What is the difference between (f cdot g)(x) versus (f circ g)(x) ?
(f cdot g)(x) = f(x) cdot g(x) Multiplication
(f circ g)(x) = f(g(x)) Composite
Let f(x) = 3x + 5 and g(x) = x2. Then (f + g)(x) equals what?
(f + g)(x) = x2 + 3x + 5
Let f(x) = 3x + 5 and g(x) = x2. Then (f - g)(x) equals what?
(f - g)(x) = -x2 + 3x + 5
Let f(x) = x2 - 5 and g(x) = 3x + 2. Then (f cdot g)(x) equals what?
(fg)(x) = 3x3 + 2x2 - 15x - 10
Let f(x) = 3x and g(x) = 2x + 4. Then (f o g)(-2) equals what?
(f o g)(-2) = 0
This is the term for all of the y-values of a function.
Range
Let f(x) = x2 - 5 and g(x) = 3x + 2. Then (f + g)(x) equals what?
(f + g)(x) = x2 + 3x - 3
Let f(x) = 2x2 + x - 3 and g(x) = x - 1. Then (f - g)(x) equals what?
(f - g)(x) = 2x2 - 2
Let f(x) = 2x2 + 4x - 3 and g(x) = x - 3. Then (f cdot g)(x) equals what?
(fg)(x) = 2x3 - 2x2 - 15x + 9
Let f(x) = 3x and g(x) = 2x + 4. Then (g o f)(2) equals what?
(g o f)(2) = 16