Semester 1 Study

Question 1

√ (x₂ - x₁)² + (y₂ - y₁)²

Answer 1

distance formula

Question 2

distance formula

Answer 2

d = √ (x₂ - x₁)² + (y₂ - y₁)²

Question 3

(x₁ + x₂) (y₁ + y₂)
———- , ———-
2 2

Answer 3

midpoint formula

Question 4

midpoint formula

Answer 4

(x₁ + x₂) (y₁ + y₂)
———- , ———-
2 2

Question 5

y-y₁=m(x-x₁)

Answer 5

point-slope form

Question 6

point-slope form

Answer 6

y-y₁=m(x-x₁)

Question 7

y=mx+b

Answer 7

slope intercept form

Question 8

slope intercept form

Answer 8

y=mx+b

Question 9

How to find the supplement?

Answer 9

divide 180 by (number used when describing how bigger the angle is) + 1

ex: angle is 11 times greater –> 180/12
supplement=fragment

Question 10

Hypotonus-Leg theorem (how to solve)?

Answer 10

X: leg2+(digit of) hypotnous1=hypotnous2

Y: leg1+(digit of) hypotnous2=hypotnous1

(variables can change, but the inverse is important)

Question 11

……/ l
62/…/.l
…./_/__l x+8

if x+8=the middle line, how do you find x?

Answer 11

62/2 = 31
31-8 = 23
ANS: 23