Lets write equation of a function:
y = kx + n
Direct variation in simple is equation of a line which has n=0 or in other words which y to x ratio is k.
First option gets 7=7 but it isnt direct variation because n is not equal to 0
third option is indeed correct. once we implement coordinates (2,7) we get 7=7
Answer is
y = 7/2x
Rational. Irrational are numbers that cannot be written as fractions. 8 can be written as a fraction. 8/1
Answer:
39⇒3
52⇒4
130⇒10
Step-by-step explanation:
hope this helps have a nice day!!!
Answer: Z=5
Step-by-step explanation:
Solve the rational equation by combining expression and isolating the variable z
Answer:
Step-by-step explanation:
You are given the relation 
This means that
The input values of this relation are 
, so the domain of this relation is 
The output values of this relation are 
, so the range of this relation is
