Answer:
A function is a relation in which no two ordered pairs have the same first element. A function associates each element in its domain with one and only one element in its range. Solution: a) A = {(1, 2), (2, 3), (3, 4), (4, 5)} is a function because all the first elements are different.
Step-by-step explanation:
X = 8 would be ur equation and I dont believe u can write it in y = mx + b form because a vertical line has an undefined slope
Answer: It's the first one because a polynomial function is always going to be F(x). Remember that!
Step-by-step explanation:
Answer:
The answer to your question is the last option
Step-by-step explanation:
Here there is a rational function so, we need to find the values where the denominator equals zero.
Factor (x - 5)(x + 5) = 0
x₁ - 5 = 0 x₂ + 5 = 0
The function does not exist in -5 and 5
x₁ = 5 x₂ = -5
Domain
( -∞ , -5) U (-5, 5) U (5, ∞)
Answer:
Slope:
y-intercept: 0
Step-by-step explanation:
First, find the slope. Use two points given to you. In this case, I will use the following:
(x₁ , y₁) = (2 , 5)
(x₂ , y₂) = (4 , 10)
Use the following equation:
slope (m) =
Plug in the corresponding numbers to the corresponding variables:
slope (m) = =
Note the slope intercept form:
y = mx + b
y = (x , y)
m = slope
x = (x , y)
b = y-intercept
Plug in the slope into m for the equation:
Choose a point to use to find b. In this case, I will use (2 , 5). Plug in 2 for x, and 5 for y:
Simplify. Isolate the variable, b. Note the equal sign, what you do to one side, you do to the other:
Y-intercept: 0