1. The midpoint formula is (x1 + x2)/2 , (y1 + y2)/2.

Lets plug that in.

Add the two x’s. You get 8. 8 / 2 is 4. There! x is solved!

(4,y)

Ok, now lets do the y. -2 + 7 is 5, 5/2.. Lets just leave it as is. So we have:

(4, 5/2)

If you divide 5 by 2, you get 2.5. Therefore, the answer for #1 is A.

2. Do the same way we did it last time. (3 + 5)/2 is 4. x is solved.

(4,y)

Lets do the y now. (8 + 4)/2 is 6. Therefore, the midpoint is

(4,6)

In other words, B.

3. Here we will use the distance formula. The distance formula is root[(x1 + x2)^2 + (x1 + x2)^2)]

Lets plug the numbers in. If you simplify it, it’s root(90^2 + 90^2). Since both of them have a squared sign on them, we can make this a lot simpler and add them. You get root(180^2). Take away the squared and the root and you get 180, which is answer C.

Alright, find the difference from A to M

X remains the same, but the Y increases by 9.

Since m is in the middle, B must be another 9 points higher, while still on the same X

So, (4, 16)

Same thing for 2

The x has increased 2, while y has decreased 4.

So, (7, 0)

First off, when they give you multiple choice, you can alway plug in the answer to see if it fits.

You know that if he were to throw it only 90 feet he couldn’t reach home (90ft becomes rou radius and while 1st abse and 3 base rest on the circle, HP does not.

Same elimination of the 180 ft answer, the radius is too big now, and it doesn’t say he threw it to 3rd and then to HP (90 ft on each trip).

However, by now in you mathmatical life you’ve probably heard the saying “A squared + B squared = C squared” for a right triangle. And what do we have here? Half of a diamond would still contain a right angle, so this little ditty applies.

So solve for C

c = Sqrt (90^2 + 90 ^2)

c = Sqrt (16200)

c = 90(Sqrt (2))

i’m maths instructor sending you this suggestion: a million) do no longer restoration particular time, 2) interest is the motivating component to income arithmetic. 3) very maximum needed factor to be observed is “prepare Examples and workouts purely. 4) do no longer bypass over any financial ruin. 5) once you’re a student of state board,do no longer learn something from out component the textual content fabric e book. 6) Refer previous 3 hundred and sixty 5 days questions. 6) if ISC, you ought to refer greater books. 7) interest and not person-friendly artwork with effective would convey you 100percentsuccesses