Question

Which is the equation of the given line in standard form?
(Points : 1)
–8x + 9y = 23
–8x + 9y = –23
–8x + 7y = 25
–9x + 8y = –23

Answer 1

http://static.k12.com/eli/ecollege/589/7_31557/2_30743_10_31644/bd160f982ed4c38b4eebe773e4b0a0e36eba41ef/media/29447d2f934e027795d77c47d6f25d0d4067ddfb/mediaasset_1331297_1.jpg

Answer 2

@math&ing001

Answer 3

@iGreen.

Answer 4

Standard form is Ax + By = C

Answer 5

ok what is a,b, c

Answer 6

Numbers..we have to find out what it is in Slope-Intercept form first, then we can re-arrange it to Standard Form.

First, we find the slope.

We are given two points, (-4, -1), and (0.5, 3)

Plug it in the slope formula:

\(m = \dfrac{y_2-y_1}{x_2-x_1}\)

\(m = \dfrac{3+1}{0.5+4}\)

Can you add those?

Answer 7

4/ 4.5

Answer 8

Yep, now divide.

Answer 9

1.125?

Answer 10

No..well we can change 4/4.5 to 8/9.

Answer 11

So the slope is 8/9.

Answer 12

oh

Answer 13

Ugh, forget it. I'll just graph all of them.

https://www.desmos.com/calculator/0r0fvdtcnh

Answer 14

So what's your answer?

Answer 15

the red one?

Answer 16

a?

Answer 17

You got it!

Answer 18

yay! can u help with couple more?

Answer 19

Which is the equation of the given line?
(Points : 1)
x = –4
y = –4
y = –4x
x = 4

Answer 20

/Users/Leezo/Desktop/mediaasset_1312644_1.jpg

Answer 21

@iGreen.

Answer 22

Sure, but make a new post.