Answer:
y - 6 = -1/4x
Explanation:
To get to point slope form, we must first work out the slope intercept form of the equation, written in the form y = mx + c where m is the gradient and c is the y intercept. From the information given (although I agree it is written in a confusing way) I think we can assume the line runs through the point (-4, 7), and has gradient of -1/4. Hence, the equation can be written:
y = -1/4x + c
Now to find c, we can substitute the co-ordinates from the given point into the respective x and y variables. Hence:
7 = -1/4(-4) + c
7 = 1 + c
c = 6
The final equation (in intercept form) is:
y = -1/4x + 6
Now we must convert it into Point-Slope form, with a form y + c = mx. To do this, we can simply move the c value onto the y side of the equation.
y - 6 = -1/4x
Hope that helps!