Respuesta :
Answer:
y = - 7
Step-by-step explanation:
The y- intercept is the point on the y- axis that the line passes through.
The line passes through the y- axis at (0, - 7), hence
the y- intercept is - 7
Slope-intercept form: y = mx + b [m is the slope, b is the y-intercept or the y value when x = 0 ---> (0 , y)]
Since you know m = -3, you can plug that into the equation
y = mx + b
y = -3x + b To find b, plug in the point they gave you into x and y, but since x = 0, your y-intercept is -7