Does this set of ordered pairs represent a function? Why or why not ?
2 answers:
Answer:
C. Yes, because every x-value corresponds to exactly one y-value
Step-by-step explanation:
We are asked to find whether the given ordered pairs represent a function or not.
We know that a relation is a function, when each input of x value gives exactly one output of y-value.
In a function two or more x-coordinates can give same y-value, but one x-value cannot give two y-values.
We can see that in our given set each x-value corresponds to exactly one y-value, therefore, the given set represents a function.
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Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (0, 4) ← 2 points on the line
m = =
= 2
Note the line crosses the y- axis at (0, 4) ⇒ c = 4
y = 2x + 4 → A