Hi Guys

I missed a week of school due to going on a holiday and i got a maths test this wednesday, which the teacher is not giving me extra time to study for. He gave 2 practice questions on what we have been doing, but not a worked out example. If you guys can please answear this questions for me as i don't understand them. Also im in year 11 Maths Methods, the questions are:

1. Find the standard form of the equation of the circle for which the endpoints of a diameter are (-2,3) and (4,-10)

2. Write the slope-intercepts forms of the equation of the lines through the point (-8,3) and

(a) parallel

(b) perpendicular

To the line 2x+3y=5

Worked solutions to this questions will be truely appriciated, if you can please answear as quick as possible because i need move on to question 3 & 4 which are more difficult then these, which i dont have a understanding of. please help