Answer:
slope-intercept form: y=-4x+1
point slope form: y-9=-4(x+2)
standard form: 4x+y=1
Step-by-step explanati4x+y=1on:
slope-intercept form: y=mx+b
substitute both (-2,9) and m=-4 into the equation to find b:
9=-4(-2)+b
9=8+b
b=1
point slope form: y-y1=m(x-x1)
substitute the values you already know
y-9=-4(x+2)
standard form: ax+by=c
take y=-4x+1 and add 4x to both sides:
4x+y=1
the a value is already positive, so no need to do anything more