Question

Please help ASAP for 15 points

Identify the equation that describes the line in slope-intercept form.

slope =−3, point (1,4) is on the line

y = −3x + 1
y = −3x + 7
y = −3x + 4
y = −3x − 7

Answer 1

b

Explanation:

y= -3x+7

Answer 2

The answer is option 2.

Explanation:

It is given that the slope of the line is -3 so you just have to substitute it into the slope-form equation, y = mx+b where m is gradient and b is y-intecept. In order to find b value, you have to put in the coordinates :

`y = mx + b`

Let m = -3,

`y = - 3x + b`

At (1,4),

`4 = - 3(1) + b`

`4 = - 3 + b`

`b = 4 + 3`

`b = 7`

`y = - 3x + 7`