Question

A line has a slope of 9/4 and a y-intercept of −14.

Which equations represent the line?

Choose all answers that are correct. @ganeshie8 @campbell_st @mathstudent55

Answer 1

y=m*x+b
y=(9/4)x-14

Answer 2

A. -9x + 4y = -56
B. 9x + 4y = 56
C. y = 9/4x - 14
D. y = 9/4x + 14

Answer 3

then just play around with that and put it in other forms

Answer 4

is a one too

Answer 5

y=(9/4)x-14

4y = 9x - 56

-9x +4y = -56

Answer 6

so its a and c

Answer 7

correct

Answer 8

can you help me with a couple more

Answer 9

(y2-y1)=m(x2-x1) Point slope form

y=mx+b

ax+by=0 standard form

Answer 10

yes sure

Answer 11

A line has a slope of 3 and contains the point (−1, −8).

Which equations represent the line?

Choose all answers that are correct.

A.
−3x + y = −5

B.
3x + y = −5

C.
(y – 8) = 3(x − 1)

D.
(y + 8) = 3(x + 1)

Answer 12

the point (1,8) ?

Answer 13

A line has a slope of 3 and contains the point (−1, −8).

Answer 14

Given: m=3 and p(x,y)=(1,8)

y=mx+b

8=(3)(1)+b

b= 8/3 so,

y= 3*x + 8/3

Answer 15

or
3y = 9x +8

-9x + 3y = 8

Answer 16

not sure if that is correct, your copy paste is messed up

Answer 17

ok but can you help me with some more

Answer 18

sure

Answer 19

Cheryl has 16 cupcakes made. She can make 48 cupcakes an hour. A customer asks for 160 cupcakes.

How many hours will it take Cheryl to make enough cupcakes for the customer? i think ist 3

Answer 20

i used (1,8) , replace that with (-1,-8)

Answer 21

She already has 16 and can make 48 each hour and needs 160

160 = 16 + 48*(#hours)

Answer 22

is it 3

Answer 23

yep

Answer 24

Gary adds $12 to his savings each week. At Week 3, Gary had $60 total in his savings.

How much will Gary have saved after 15 wk?

Answer 25

i think its 204 @DanJS

Answer 26

Total = 12*(#week) + 24

Answer 27

because, at week 3 he had 60, 12*3 = 36
so he started at week 0 (y-intercept) with 24 dollars
and it is a linear equation

Answer 28

total = starting amount + 12 * # weeks