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Mathematics 21 Online
OpenStudy (testing123guest):

help with 5 Math questions plz

OpenStudy (testing123guest):

Mehek (mehek14):

For the first one, substitute the value of x that they give you into the equation

Mehek (mehek14):

like for C, they gave you 3 so solve \(\tt{y=1.3*3}\)

OpenStudy (testing123guest):

3.9

Mehek (mehek14):

yes so for C, the y coordinate is 3.9

Mehek (mehek14):

for D, you have -6 \(\tt{y=1.3*(-6)}\)

OpenStudy (testing123guest):

@AlexandervonHumboldt2

OpenStudy (alexandervonhumboldt2):

yeah i'm here

OpenStudy (testing123guest):

cool give me a sec to answer

OpenStudy (testing123guest):

-7.8

OpenStudy (alexandervonhumboldt2):

yeah -7.8

Mehek (mehek14):

So Point C (3,3.9) Point D(-6,-7.8)

Mehek (mehek14):

For the second question, you substitute the answer choices into the equation.

Mehek (mehek14):

so like A (-1,-12) \(\tt{-12=12*(-1)}\) is that true?

OpenStudy (testing123guest):

yes it is true

OpenStudy (testing123guest):

is there a way we can make this a little bit faster i need to get done soon

Mehek (mehek14):

yea sure

OpenStudy (testing123guest):

*soon*

Mehek (mehek14):

But I want to make sure you understand how to solve

OpenStudy (testing123guest):

i know i am just on a time crunch

Mehek (mehek14):

So you want answers or how to solve?

OpenStudy (testing123guest):

both but faster but its cool no rush

Mehek (mehek14):

ok so it's not B because -1 = 12*(-12) <-- not true C is correct because 12 = 12*1 D is incorrect because 1 = 12*12 <-- not true so the answers to the second question are A and C

OpenStudy (testing123guest):

for the second question

Mehek (mehek14):

yes second question

OpenStudy (testing123guest):

cool i got that on know

Mehek (mehek14):

third question: slope is -1.5 that means the line is going down so it can't be B or C

Mehek (mehek14):

the correct graph would be A

OpenStudy (testing123guest):

cool now this is better

Mehek (mehek14):

ok fourth question: line is going up so positive slope so between A and B the correct answer would be B

OpenStudy (testing123guest):

where did u go

OpenStudy (testing123guest):

sorry my computer said u left

OpenStudy (testing123guest):

cool one more

Mehek (mehek14):

ok last question use the points (-1,5) and (1,-5) slope formula \(\dfrac{-5-5}{1-(-1)}=\dfrac{-10}{1}=-10\) so slope is -10

Mehek (mehek14):

and that's it ^_^

OpenStudy (testing123guest):

thx man i got an 80%

Mehek (mehek14):

yw :]

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