Answer:
y - 5 = x - 20
Step-by-step explanation:
The equation of a linear function in
slope-intercept form: [tex]y=mx+b[/tex]
point-slope form: [tex]y-y_1=m(x-x_1)[/tex]
standard form: [tex]Ax+By=C[/tex]
general form: [tex]Ax+By+C=0[/tex]
1.
y(x - 1) = 9
xy - y = 9 NO
2.
y - 5 = x(-x + 2)
y - 5 = -x² + 2x NO
3.
y(y - 1) = x + 25
y² - y = x + 25 NO
4.
y - 5 = x - 20
y - 5 = 1(x - 20) YES (it's a point-slope form)
