Question

Passes through -3,-5 and is parallel to y=-1/2x-4

Answer 1

@SolomonZelman

Answer 2

I know how to work it out but could you teach me how to multiply the fraction

Answer 3

with -3

Answer 4

ys, when you multiply a number times a fraction, you would multiply this number times the top of the fraction,

So if you had: \(\large\color{black}{ -\frac{\LARGE 1}{\LARGE 2}\times (-3) }\)

then you get: \(\large\color{black}{ -\frac{\LARGE 1\times (-3)}{\LARGE 2} }\)

Answer 5

That would be -3/2?

Answer 6

but you already have 1 minus in front of the 1/2. So, it would be:

\(\large\color{black}{ -\frac{\LARGE -3}{\LARGE 2} }\) which then becomes: \(\large\color{black}{ \frac{\LARGE 3}{\LARGE 2} }\) (because two negatives become positive)

Answer 7

oh thanks ! ;o

Answer 8

yes, so you are getting:
\(\large\color{black}{ -5= \frac{\LARGE 3}{\LARGE 2}+b }\)
(when you plug in (-3,5) into \(\large\color{black}{ y= -\frac{\LARGE 1}{\LARGE 2}x+b }\) )

Answer 9

can you tell me what the \(\large\color{black}{ b}\) is going to be equal to?
(solve for b, basically)

Answer 10

i got 7/2 as my answer

Answer 11

you have a NEGATIVE 5 on the left side, try again....

Answer 12

would it be negative?

Answer 13

yes,

Answer 14

oh so negative 7/2?

Answer 15

\(\large\color{black}{ -5\color{blue}{-\frac{\LARGE 3}{\LARGE 2}}= \frac{\LARGE 3}{\LARGE 2}+b \color{blue}{-\frac{\LARGE 3}{\LARGE 2}} }\)

Answer 16

3/2 on the right side cancel, and the right side just remains to be: \(\large\color{black}{ b }\)

Now, the left side you need to calculate: \(\large\color{black}{ -5\color{blue}{-\frac{\LARGE 3}{\LARGE 2}} }\)

Answer 17

-7/2

Answer 18

fractions confuse me ;/

Answer 19

\(\large\color{black}{ -5-\frac{\LARGE 3}{\LARGE 2} ~~~~~\Rightarrow ~~~~-5-1\frac{\LARGE 1}{\LARGE 2}~~~~\Rightarrow~~~~~ ?}\)

Answer 20

4 1/2?

Answer 21

the 5 is also negative:

Answer 22

-6 1/2?

Answer 23

yes, there you go: \(\large\color{black}{ -6\frac{\LARGE 1}{\LARGE 2}}\)

Answer 24

how would i make it simplest form o;

Answer 25

so you have:
\(\large\color{black}{y= - \frac{\LARGE 1}{\LARGE 2}x-6\frac{\LARGE 1}{\LARGE 2}}\)

Answer 26

what do you mean simple form?

Answer 27

my teacher doesn't like me to put 6 1/2 she wants just 1 fraction ;/

Answer 28

like 1 piece only

Answer 29

if you know what i mean ;/

Answer 30

like ?/2

Answer 31

oh, so there is a formula to convert mined numbers into improper fractions.

\(\large\color{black}{ \color{green}{A}\frac{\LARGE \color{red}{b} }{\LARGE \color{blue}{c}}=\frac{\LARGE (\color{green}{A} \times \color{blue}{c})+\color{red}{b} }{\LARGE \color{blue}{c}} }\)

Answer 32

so for example, if you needed to convert:
\(\large\color{black}{ \color{green}{4}\frac{\LARGE \color{red}{2} }{\LARGE \color{blue}{3}}=\frac{\LARGE (\color{green}{4} \times \color{blue}{3})+\color{red}{2} }{\LARGE \color{blue}{3}}= \frac{\LARGE (12)+\color{red}{2} }{\LARGE \color{blue}{3}}=\frac{\LARGE 14 }{\LARGE \color{blue}{3}} }\)

Answer 33

(-6 x 2 ) + 1
3

Answer 34

\(\large\color{black}{ \color{green}{6}\frac{\LARGE \color{red}{1} }{\LARGE \color{blue}{2}}=\frac{\LARGE (\color{green}{6} \times \color{blue}{2})+\color{red}{1} }{\LARGE \color{blue}{2}}=\frac{\LARGE? }{\LARGE ?} }\)

Answer 35

over 2*

Answer 36

you are doing it correctly

Answer 37

but don't do negative 6 in there

Answer 38

13/2?

Answer 39

fiorst do all the positive numbers, and then put a sign

Answer 40

yes, but negative 13/2.

Answer 41

oh okay

Answer 42

ood job:

Answer 43

thanks :D, Without you I would've got that one wrong o;

Answer 44

you are surely welcome:D