First question,
The point-slope form is:
\(y-y_1=m(x-x_1)\)
Where \(x_1\) and \(y_1\) are the points (In your question the given point passing through the point (7,1)) x_1 is 7, y_1 is 1
m is the slope
so y-1=-4(x-7)
1st choice
Second question:
Similar answer,
write it in point-slope form,
y-(-1.4) =1.9(x-4.5)
so,
y+1.4=1.9(x-4.5)
Second choice.
