<u>It doesn't matter what order the coordinates are in the distance formula as long as it stays in it's corresponding order.</u> In this case, (-7,5) could be (x1,y1) and (3,-5) could be (x2,y2) or vise versa, just as long as you don't mix up the coordinates (so no (-7,-5) or (3,5)). I'll demonstrate this below:

<u>The distance between these points, no matter the order, is √200, or approximately 14.14 units.</u>
Make x the subject means you need to solve for x
y = ax^2 solve for x
divide both side by a
y/a = ax^2/a
simplify
y/a = x^2
so
x = square root (y/a)
Answer:

Step-by-step explanation:
Applying Pythagoras theorem on right angle triangle


Diameter=2 x radius

Answer:
(2,-4)
Step-by-step explanation:
-4+2=-2
10+-4=10-4=6
Answer:Exact Form:
1/2
Step-by-step explanation: