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Mathematics 15 Online
OpenStudy (anonymous):

PLEASE HELP I WILL GIVE MEDAL AND BECOME FAN

OpenStudy (anonymous):

What is the slope and y-intercept of this line? y = –2x + 8 A. slope: 8, y-intercept: –2 B. slope: 2, y-intercept: –8 C. slope: –1, y-intercept: 4 D. slope: –2, y-intercept: 8

OpenStudy (anonymous):

y=mx+b is the form that the equation is in. M is the slope and b is the y-intercept.

OpenStudy (anonymous):

which letteris that

OpenStudy (anonymous):

if you plug in the numbers you will see

OpenStudy (anonymous):

ohhh c.

OpenStudy (anonymous):

look again :P

OpenStudy (anonymous):

llol my bad a

OpenStudy (anonymous):

close

OpenStudy (anonymous):

OH d I KNOW IT'S D!

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

do you understand it?

OpenStudy (anonymous):

yeah now I do thx

OpenStudy (anonymous):

What is the slope and y-intercept of this line? y = x – 3 A. slope: –3, y-intercept: 1 B. slope: 1, y-intercept: –3 C. slope: –1, y-intercept: –3 D. slope: 3, y-intercept: –1

OpenStudy (anonymous):

try and do this one on your own and i will tell you if your right

OpenStudy (anonymous):

b

OpenStudy (anonymous):

almost :) You have the right numbers, but you need to switch them

OpenStudy (anonymous):

a

OpenStudy (anonymous):

sry... you were right actually with b :P I was just having a hard time because of the spacing

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

anymore?

OpenStudy (anonymous):

2 more

OpenStudy (anonymous):

David is selling floral arrangements. Each arrangement uses 1 vase and 12 roses. Each vase costs David $2.00. Let C be the total cost of the arrangement and r be the cost of 1 rose. Which equation should David use to find the total cost of each arrangement? A. C = 2r + 12 B. 12 = C + 2r C. C = 12r + 2 D. 12C = r + 12

OpenStudy (anonymous):

Important info C= the total cost of the arrangment r= the amount of 1 rose and each vase has 12 roses 2.00= the cost of the vase

OpenStudy (anonymous):

With that information, which letter do you think is the right answer?

OpenStudy (anonymous):

c

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

whats the last question?

OpenStudy (anonymous):

What is the slope-intercept form of this equation? 3x + 9y = 18

OpenStudy (anonymous):

subtract 3x from both sides and then divide by 9 and what do you get?

OpenStudy (anonymous):

b

OpenStudy (anonymous):

what did you do to get your answer?

OpenStudy (anonymous):

are you able to show your work?

OpenStudy (anonymous):

i found out its a

OpenStudy (anonymous):

not quite

OpenStudy (anonymous):

3x + 9y = 18 9y=-3x+18 y=(-3x+18)/9

OpenStudy (anonymous):

c?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

thx :D

OpenStudy (anonymous):

np

OpenStudy (anonymous):

well creampie 24 was suspended so i'm using this account i can't close it but it's in a sense closed bye

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