Question

What equation represents this graph? (ANSWER QUICK)

Answer 1

`y=-2x+9`

Explanation:

y = mx + b

The slope (m) is negative since the line is pointing downwards.

The slope is equal to rise over run. The points go down 2 over 1, which is 2/1 or 2.

B, aka the y-intercept, is equal to 9

Answer 2

y = -2x + 9

Explanation:

some dotted lines coordinates : ( 0 , 9 ) , ( 2 , 5 )

find gradient : 5 - 9 / 2- 0

m : -2

use equation:

y - y1 = m ( x - x1 )

y - 9 = -2 ( x - 0 )

y - 9 = -2x

y = -2x + 9

proved in the image below. confirmed.