Equation of a perpendicular line (-2,-3); 2y +4x =8

If you want a line perpendicular to that containing (-2,-3):

1. put equation in slope-intercept form

2y=-4x+8

y=-2x+4

2. find the slope of the perpendicular line:

the slope is the opposite reciprocal of the original slope.

so, the original slope is -2

the opposite reciprocal is 1/2

3. find b

the point slope equation is y=mx+b

-add slope

y=(1/2)x+b

- use your point (-2,-3) to plug in known values for x and y

-3=(1/2)(-2)+b

-solve

-3=-1(b)

b=3

your equation is y=(1/2)x+3

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3