Question

Which equation below is not an equation that represents the graph shown below?

Answer 1

y + 2 = -3(x - 1)

3x + y =1

y - 1 = -3(x + 2)

y = -3x + 1

Answer 2

what is the y intersect of this line ? what is the slope of this line ?

Answer 3

the slope is 1/3

Answer 4

idk bout the y intercept

Answer 5

why do you say that the slope is 1/3 ?
first the slope should be negative since the graph is decreasing ..
next y intercept is the point where the graph touches the y axis

Answer 6

sory 1/-3

Answer 7

it's -3
the slope is delta y / delta x
or you can think of it : for every unit that you go towards the positive x direction
how much does the y changes ?

as you can see here for every unit in the x direction we get down by 3 in the y direction

Answer 8

ohh ok... what is the y intercept

Answer 9

where does the graph touches the y axis ?
at y = 1

so in the slope intercept form :
y = ax + b
a is the slope and b is the y intercept
so our graph equation should be
y = -3x + 1

Answer 10

no you have to check which one of the equations isnt like this

Answer 11

so the answer would be D?

Answer 12

we just said that y = -3x + 1 describes the graph

Answer 13

your question is which of the equation is NOT representing the graph

Answer 14

ohhh ok.....

Answer 15

so what is the answer?

Answer 16

it has to be between a and c right?

Answer 17

yes since we said that it isnt D

Answer 18

you just have to simplify the equations and see which one of them doesnt look like
y=-3x+1

Answer 19

i have to go now so ill give the answer with explanation :

A.y + 2 = -3(x - 1)
y +2 = -3x + 3
y = -3x + 1
not the answer

B. 3x + y =1
y = -3x +1
not the answer

C. y - 1 = -3(x + 2)
y -1 = -3x - 6
y = -3x - 5
this is the answer

Answer 20

thank u!