Question

Multiple Response: Please select all correct answers and click "submit."

Which of the following could be the equation of the graph shown below?

Check all that apply.


A. y = -4x + 2
B. 3x + 2y = 6
C. y = 5
D. 2x - y = 7

Answer 1

@johnweldon1993

Answer 2

As you look at the line from left to right, the line is falling.
That is, as x gets larger, y gets smaller. That means the slope is negative.

Look at the options and eliminate those which have positive slopes.

Answer 3

@Owlcoffee

Answer 4

Just to add Directrix's explaination, lines have this element called "slope" which signifies the angle in regards to the x-axis.
When the slope is positive the line looks like this:

And when it is negative:

The slope can be put to evidence in a algebraic form by using the form:
\[y=mx+c \]
This is the "point-slope" form of the line and can model each line I showed you above, "m" is the angular coefficient, a more fancy way to say "slope".

Answer 5

@narissa

Answer 6

in addition:

the value of c is the point at which the graph intersects the y axis

in your graph this is a positive number

so - look a the equations

re-arrange them into y=mx+b format

choose those that have a negative slope AND a positive intersect

Answer 7

at the end what are the final answers

Answer 8

because i did it but i got that question wrong

Answer 9

@selena929....it should be A

Answer 10

but that was the only answer its multi choice

Answer 11

@DavidUsa what do you think ?

Answer 12

estoy estudiando para el amc 8.

Answer 13

A. y = -4x + 2

B. 3x + 2y = 6
2y =-3x+6
y=-3/2 x+3

C. y = 5

D. 2x - y = 7
y=2x-7

look for negative slope m AND positive intersect b