Either graph the points, or you can divide x by y for each set of points and if your answers are the same, then it is linear.
Hope it helps!
Answer:

Step-by-step explanation:
Draw a diagonal (line segment from one corner to the opposite corner). You'll form two right triangles with the diagonal being the hypotenuse of both triangles.
Use the Pythagorean Theorem: (leg)^2 + (leg)^2 = (hypotenuse)^2.
Let h represent the length of the hypotenuse.

The question is just a bit vague. It should say opposite corners. I'm assuming the question does not mean the length of one side!
Answer:
quick question that 1 4 supposed to be a fraction? as in 1/4?
Answer:
Divide both sides by 4
Step-by-step explanation:
Please give brainliest
3.65x19.8=$72.07 hit that thanks button and 5 star rating plz thankyou!!!!