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

Respuesta :

Answer:

b

Step-by-step explanation:

y= -3x+7

Answer:

The answer is option 2.

Step-by-step 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 :

[tex]y = mx + b[/tex]

Let m = -3,

[tex]y = - 3x + b[/tex]

At (1,4),

[tex]4 = - 3(1) + b[/tex]

[tex]4 = - 3 + b[/tex]

[tex]b = 4 + 3[/tex]

[tex]b = 7[/tex]

[tex]y = - 3x + 7[/tex]