Which of the following statements best represents the relationship between a relation and a function.
2 answers:
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Answer:
Step-by-step explanation:
Since, the graph of the function is a straight line, function defining this function will be a linear function.
Let the equation of the line is,
y = mx + b
where m = slope of the line
b = y-intercept
From the graph,
b = 2
And two points (0, 2) and (-2, 1) lie on this line.
Slope 'm' =
=
=
Now the equation will be,
y =
Answer:
Step-by-step explanation:
Direct variation problems can easily be solved with proportions, namely:
and cross multiply to get
2y = 20 so
y = 10