Question

Write the slope-intercept form of the line which passes through (4, 2) with a slope of 1/2.

how do i solve this?

Answer 1

use point slope form.. \[y - y_{1} = m(x - x_{1})\]

Answer 2

then solve for y

Answer 3

use slope point slope form
y-y1=m(x-x1)
m is slope

Answer 4

wait its noym= y1-y/x-x1

Answer 5

Slope-intercept form is y = mx + b
All you do is plug in the slope and the point given in the problem and then figure out the y-intercept. (b)

m is the slope and x and y is the point given. (4, 2) (x, y)
So plug these into the formula and solve for b.
Once you find b, then you plug it back into the formula along with the slope and you're done.

Answer 6

2=m4+b?

Answer 7

Yes, but put in the slope as m. Then you can solve for b.

Answer 8

where does trthe1/2 go?

Answer 9

Slope Intercept form: y = mx + b

y axis = 2 so

*2 = mx + b*

x axis is 4 so

* 2 = m(4) + b

m = slope sp

*2 = 1/2(4) + b

now multiply 1/2 * 4 to get 2

now we have 2 = 2 + b

subtract 2 from each side

b = 0

Answer 10

1/2 is the slope. Plug it in for m.

Answer 11

ok 2=1/2(4)+b anf i try to find b right?

Answer 12

1. 2 = 1/2(4) + b
2. 2 = 2 + b
3. subtract 2 from each side to get b = 0

Answer 13

Thanks for just giving her the answer, Storm. She was about to do it on her own.

Answer 14

the thing isthats nit one of the answers y = 1/2 x + 2
y = 1/2 x
y = 1/2 x + 4

Answer 15

your welcome

Answer 16

Since b is 0, you just don't need to have it there.

Answer 17

So you plug the slope back into the original equation once your have b. But in this case, you just plug the slope into the equation and ignore b.

Answer 18

so its the second one?

Answer 19

yes

Answer 20

ok thanks peoples!

Answer 21

Yes. \(\Large\ddot\smile\)

Answer 22

y-2=1/2(x-4)
y-2=1/2x-2
add 2 on both sides
y=1/2x here y intercept is 0