write an equation using whats given

Question

Line

k

has

an

equation

of

y	+	9	=	–3
2
(	x	+	7	)	.		Line

l

is

perpendicular

to

line

k

and

passes

through

(–6, –3)

.

What

is

the

equation

of

line

l

?

\

Answer 1

The given line is scrambled among the boxes:

Looks like y + 9 = -32(x + 7)

Please repost if it is not. Do not use fancy boxes and things...

just type it paying attention to parenthesis

y = -32(x+7) - 9

= -32x - 224 - 9

= -32x - 233

so the slope is (-32) which means the perpendicular line has slope 1/32

The perpendicular line eats (x=-6, y=-3)

B = y - mx = -3 - (-6)(1/32)

= -3 - (-6/32)

= (-96/32) - (-6/32)

= (-96 + 6)/32

= -90/32

= -45/16

the equation for the line that is perpendicular is

y = (1/32)x - 45/16