Which of the following is a direct proportion? A. y=7x B. y=x+7 C. y=7x−7 D. y=7
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Swap x and y, then solve for y.
You have several possible points . Any point that lies on the given line will have a
value that you obtain by plugging in the corresponding value of
into the equation of the line.
The line has equation , so any point on the line will have the form
.
Among the four given points, there are only 2 different values of to check. We have
which means the given line contains the points (4, -5) and (1, 4). So the answer is A.