Question

1.)Choose the equation of the line passing through the point (-4, -2) and perpendicular to y = -x + 6.

y = -x + 6

y = x - 6

y = -x - 2

y = x + 2



2.)A video game club charges a fixed annual membership fee of $20 and $2 per video game rented. Let f(n) represent the total annual cost of renting n video games. Which of the following functions best represents the relationship between f(n) and n if the membership was increased by $15 the next year?

a. f(n) = 2n + 35

b. f(n) = 20n + 2

c. f(n) = 10n + 35

d. f(n) = 2n + 10

Answer 1

perpendicular lines have inverse slopes lets say the slope of a line is 3
then its perpendicular line's slope would be -1/3

Answer 2

Explain more please? :O

Answer 3

y = - x + 6
the coordinates for the perpendicular line is (-4,-2)
the inverse of -1 is 1
so you plug it into point-slope form
y + 2 = 1 (x+4)
y + 2 = x + 4
y = x +2

Answer 4

point-slope =
y- y1 = m(x-x1)

Answer 5

after point - slope i changed the equation to slope-intercept.

Answer 6

y = mx + b
is slope intercept

Answer 7

*Do i have to distribute?

Answer 8

Distribute 1? anything times 1 is that number.

Answer 9

I'm confused :/
what numbers am i plugging in for the equation y- y1 = m(x-x1)

Answer 10

the coordinates given (-4,-2)