Question

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Which is an equation of the given line in standard form?

A.
–8x + 9y = 23

B.
–8x + 9y = –23

C.
–8x + 7y = 25

D.
–9x + 8y = –23

Answer 1

@pooja195

Answer 2

@AlexandervonHumboldt2

Answer 3

\(\sf\Large Slope = \frac{\color{blue}{y_2}-\color{red}{y_1}}{\color{green}{x_2}-\color{purple}{x_1}}\)

Where the two points are in the form:

\(\sf\Large (\color{purple}{x_1},\color{red}{y_1})~and~(\color{green}{x_2},\color{blue}{y_2})\)

Answer 4

So, @muneeb180 can you find the slope? (:

Answer 5

lol nope

Answer 6

@TheSmartOne

Answer 7

We have the two points (-4,-1) and (1/2,3)

Plug them in. :)

Answer 8

Oh
so I would do -4+3 and -1+1/2

Answer 9

right?

Answer 10

y-values go together

and x-values go together

Answer 11

so its -1+3 and -4+1/2

Answer 12

it's subtraction, not addition

so -1 -3

and - 4 - 1/2 = -4 - 0.5

Answer 13

-4 and -4.5

Answer 14

@TheSmartOne

Answer 15

@pooja195

Answer 16

@AlexandervonHumboldt2

Answer 17

@muneeb180 sorry i can't help because TheSmartOne doesn't allow me :(

Answer 18

???

Answer 19

Yes, the slope is -4/-4.5, or 4/4.5

Answer 20

I think it will be easiest to put it in slope intercept form then switch it to standard

Answer 21

Okay, so now, what is the y-intercept?

Answer 22

lol idk

Answer 23

easier to put into point-slope form and then convert :P

y - y1 = m (x-x1)

Answer 24

4/4.5 = 8/9 = m

Answer 25

choose any point

and plug in slope, which is m = 8/9

Answer 26

lol i got it

Answer 27

Standard Form: the standard form of a line is in the form Ax + By = C where A is a positive integer, and B, and C are integers.

http://jwilson.coe.uga.edu/emt668/emat6680.2002/jackson/chapter%205%20lesson%20plan/day6.html

Answer 28

@muneeb180 Are the options correctly written?

The coefficient of the x term should be positive in standard form.