Question

someone check my work??

Answer 1

ok

Answer 2

point slope: (5,-6) and (1,-7)

first i need to find the slope right? so it's gonna be -1/4

then i plug it in to= y-y2 = m(x-x1)

so its: y+7= -1/4(x-5)

and the answer is: y= -1/4x - 23/4

Answer 3

positive 1/4

Answer 4

okay! thanks

Answer 5

y = 1/4x - 33/4

Answer 6

for finding the slope, u made an error for the denominator, it's meant to be 1/4

Answer 7

1-5=-4 <<denominator

-1/-4 = 1/4

Answer 8

y - y1 = m(x - x1)
y - (-7) = (1/4)(x - 1)
Now simplify

Answer 9

m = slope = (difference in y)/(difference in x)
m = (-6 - (-7)) / ( 5 - 1) = (-6 + 7)/5 = 1/4
Your equation is incorrect, (x1, y1) has to be used, not (x1, y2):
y - y1 = m(x - x1),
but you must use the x1, y1 of one single ordered pair.
Either say x1 = 5, y1 = -6
or x1 = 1, y1 = -7
You can't use the x coordinate of one point with the y coordinate of the other point.

Answer 10

y = 1/4x - 29/4

Answer 11

Correct

Answer 12

gracias

Answer 13

de nada

Answer 14

haha im not spanish btw

Answer 15

neither am I

Answer 16

lol

Answer 17

do you guys know the standard form

Answer 18

0.5x - 2y - 0.75 = 0

Answer 19

rearrange for y=mx +c
m=gradient c=y-intercept.

Answer 20

Standard form for a linear equation is
ax + by = c
where a, b, and c are integers.
Just add 0.75 to both sides to get it on the right side.
To get integers, multiply both sides by 100

Answer 21

isolate y to be on one side so you find y=....... just like (y=mx +c)

Answer 22

y = 0.5x + (-2y)

Answer 23

yeah?

Answer 24

You asked if we know standard form. Are you trying to write this equation in standard form?

Answer 25

yes but i dont know how to

Answer 26

I just explained. look a few lines up and follow what I wrote.

Answer 27

Here it is again:
Standard form for a linear equation is
ax + by = c
where a, b, and c are integers.
Just add 0.75 to both sides to get it on the right side.
To get integers, multiply both sides by 100

Answer 28

0.5x - 2y - 0.75 = 0
1) we want it in y=mx+c form
so we want y on the LHS and the rest on the RHS.
in order to do this we will have to bring the 0.5x and 0.75 to the RHS first.
-2y = -0.5x + 0.75
y = ..................... (you can do this)

Answer 29

0.5x - 2y - 0.75 = 0
Add 0.75 to both sides
0.5x - 2y = 0.75
Multiply both sides by 4 to get integer coefficients.
2x - 8y = 3
This is standard form.