Question

Choose the point-slope form of the equation below that represents the line that passes through the point (-1, 6) and has a slope of -3. @ParthKohli can you help me?

Answer 1

\[y-6 = -3(x+1)\]

Answer 2

how did you get that?

Answer 3

ok y- ycoordinate = slope (x- xcoordinate)

Answer 4

\[y-y _{1}=m(x-x)\] Just like @ankitshaw

Answer 5

sorry i was not clear but i hope its clear now

Answer 6

yes thank you so much :) can i show you the rest? i have 7, i have the answers to most.

Answer 7

sure

Answer 8

Given the equation y - 3 = one half(x + 6) in point-slope form, identify the equation of the same line in standard form.

x - 2y = -12

y = one halfx

y = one halfx + 6

y = one halfx + 9

for this i got A (x-2y=-12)

Answer 9

A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 45 dumpster loads of waste removed. In week 10, there were 30 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week.

f(x) = - 3x + 45

f(x) = 3x + 45

f(x) = - 3x + 60

f(x) = 3x + 60
For this i got C

Answer 10

what?

Answer 11

(45-30)/(5-10)=15/-5=-3

so slope =-3

point slope form using second point (10,30)

y-30=-3(x-10)
y-30=-3x+30
y=-3x+60

Answer 12

Thank you for checking the first one :)

Answer 13

No problem!:)

Answer 14

Any doubts?? @jadee27p

Answer 15

on my other problems yes.

Answer 16

What other problem?

Answer 17

A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 45 dumpster loads of waste removed. In week 10, there were 30 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week. f(x) = - 3x + 45 f(x) = 3x + 45 f(x) = - 3x + 60 f(x) = 3x + 60 For this i got C

Answer 18

I just explained that to you above..

Answer 19

oh i didn't see. sorry, let me check.

Answer 20

It's ok! Everyone makes mistakes...including me.. So any doubts??

Answer 21

Choose the point-slope form of the equation below that represents the line that passes through the points (-6, 4) and (2, 0).

y - 4 = -one half(x + 6)

y - 4 = 2(x + 6)

y + 6 = -one half(x - 4)

y + 6 = 2(x - 4)

Answer 22

i got A

Answer 23

4 - 0/-6 - 2 = 4/8

Answer 24

m (0 - 4)/(2 - (-6)) = -4/8 = -1/2

y - 4 = (-1/2) (x - (-6)) = (-1/2) (x + 6)

Answer 25

So A is correct!!

Answer 26

Any doubts on this one??

Answer 27

Choose the correct slope of the line that passes through the points (-4, 8) and (-3, -6).

7

-14

0

14

Answer 28

no on that i got 7

Answer 29

i think its -14

Answer 30

\[\frac{ y-y _{1} }{ x-x }\]

Answer 31

can you help me understand

Answer 32

oops...forgot the one under the y1...just so you know..

Answer 33

if there are two pair of point lets assume (a,b) and (c,d) slope of the line passing through these points will be = (d-b)/(c-a)

Answer 34

thank you!

Answer 35

Which of the following will give you the incorrect slope?

the quantity y subscript two minus y subscript one over the quantity x subscript two minus x subscript one

the quantity y subscript two minus y subscript one over the quantity x subscript one minus x subscript two

the quantity y subscript one minus y subscript two over the quantity x subscript one minus x subscript two

rise over run
for this i think the 2nd one is wrong.

Answer 36

you are correct

Answer 37

A computer manufacturer built a new facility for assembling computers. There were construction and new equipment costs. The company paid for these costs and made combined profits of $40 million after 4 years while profits increased $30 million per year. Select the correct graph of this function. This one i don't understand at all.