Question

Choose the equation that represents the graph

http://gyazo.com/b7e8866d44be498bdd25e8aaeae856e9
a. y = -2x - 6
b. y = two thirdsx + 6
c. y = -two thirdsx + 6
d. y = 2x + 6

Answer 1

@Luigi0210

Answer 2

A good graphing calculator: https://www.desmos.com/calculator

Answer 3

Is the slope postive or negative?

Answer 4

thank you very much mn!

Answer 5

negative ?

Answer 6

Correct :)

Answer 7

That means we can elimate two answer choices, which 2 can we eliminate?

Answer 8

Also, you could look for the slope using the points (0, 6) and (9, 0)

Answer 9

how so? that confuses me luigi

Answer 10

b and d

Answer 11

Since it's already in slope intercept form, just look for the m.

Answer 12

so its either a or c

Answer 13

\(\sf\Large Slope=\frac{y_2-y_1}{x_2-x_1}\)

Answer 14

oh so just look at the points

Answer 15

i get it now

Answer 16

thank you guys for your help!

Answer 17

Plug in x=0 into a or c and see if it gives you the correct y-intercept that is shown in the graph :)

Answer 18

c?

Answer 19

correct \(\ddot\smile\)

Answer 20

thank you!

Answer 21

np