Question

Write an equation of the line in slope-intercept form given the
slope is -5 and the y-intercept is 7.

Answer 1

just plug-in the values to form\[y=mx+b\]where m is the slope
b is the y-intercept

Answer 2

then simplify the equation

Answer 3

soo
is it Y=-5X+7

Answer 4

yup you're correct...

Answer 5

thx so much
can u meh with more ques I have a test

Answer 6

when is your test?

Answer 7

i got 2 finish it asap :/
can u help me pls *-*

Answer 8

i got a D tha first time
i need 2 pull up my grade

Answer 9

just put in your question...

Answer 10

ok
Write an equation of the line in slope-intercept form given the
slope is 10 and the y-intercept is -3.

Answer 11

the same procedure above...

Answer 12

as long as the slope and y-intercept is given, just plug-in them in that formula, that is what we call Slope-Intercept form of a LINE\[y=mx+b\]

Answer 13

sooo
is it Y=10X-3

Answer 14

yup you got it correct again!...\(\ddot\smile\)

Answer 15

ok
here i another
it will take a min

Answer 16

ok...i'll wait...

Answer 17

Referring to the figure, write an equation of the line shown in
the graph.

Answer 18

you have two points already as P1(0,1) and P2(-1,0)... you may compute the slope of a line first using\[m=\frac{rise}{run}=\frac{y_2-y_1}{x_2-x_1}\]

Answer 19

soo
is it Y = -1X+5

Answer 20

... then look for a point where x=0, its y is the y-intercept...

Answer 21

your slope is -1... we can check...\[m=\frac{0-1}{-1-0}=\frac{-1}{-1}=+1\]

Answer 22

Soo
is it Y=1x+5

Answer 23

one thing more about slope, a negative (-) slope is inclined to the left while a positive (+) slope inclined to the right...

Answer 24

no still not... try to plug-in any of the given point P1... to give you the y-intercept... point P1 is actually the one you're looking for... it is a point where x=0, so it's y is the y-intercept....

Answer 25

hmmm
let meh think here

Answer 26

our P1 is (0,1)... what is y here?

Answer 27

remember that coordiantes of a point is in a form (x,y)...

Answer 28

(-1,0)

Answer 29

that is our point P2

Answer 30

where x=-1 and y=0....

Answer 31

in point P1 (0,1)... x=0 and its y=1 (this is the y-intercept)... Y-intercept of a line can be solve once x=0...

Answer 32

therefore you have m=1 and b=1, what do you think is the line equation?

Answer 33

im sorry Orion my internet is actin up

Answer 34

no problem... just waiting here

Answer 35

same procedure as before... you have slope m and y-intercept b...

Answer 36

if I don't respond fast @Orion1213 then know that my internet is acting up

Answer 37

yup i know... this one is much easier than the two you have just answered...

Answer 38

soo
is it Y=1x+1

Answer 39

or you may simply write it as\[y=x+1\]if the coefficient is 1, we simply do not write it before its variable x, it is automatically 1... the same as the y on the left-hand side of the equation...

Answer 40

still you got it correct...

Answer 41

@Orion1213 im here u just cant c me
n heres tha next ques
Write a linear equation to model the situation. You borrow $70 from
your brother. To repay the loan, you pay him $7 per week. Use w to
denote the number of weeks and y as the balance on the loan.

Answer 42

is it:
y=7w

Answer 43

is it hard orion

Answer 44

brb

Answer 45

from my drawing... our y-intercept is $70, that is at week w=0, to repay the loan, it will be pay at $7 a week... therefore we have the following trend of the line...
w=0, y=70
w=1, y=70-7=63
w=2, y=63-7=56
... and so on...

Answer 46

hmmm
interesting
sooo
is it y=70-7w

Answer 47

@Orion1213

Answer 48

wait...

Answer 49

yes you're right... if w=10, you're balance would be y=0...

Answer 50

ok next ques
Write an equation of the line that passes through the point (3,0) and
has the slope, m = -2.

Answer 51

is it
Y=-2X+6

Answer 52

in this question we have a point and a slope, we can use the point-slope formula of\[(y-y_1)=m(x-x_1)\]

Answer 53

so is my answer rite
Y=-2X+6

Answer 54

Plug-in the given values... let us check\[(y-0)=-2(x-3)\]\[y=-2x+6\]you're right!\(\ddot\smile\)

Answer 55

you're learning it...

Answer 56

ok so next 1
Write an equation of the line that passes through the point (1,2) and
has the slope, m = 2.

Answer 57

just the same from the previous one....

Answer 58

sorry i have to leave now... i have a visitor to face for a while... your answer must be y=4x...

Answer 59

ok thx 4 all ur help
ill try 2 find some1 else 2 help thx again @Orion1213!!!!!!!!!! :)