Question

Which equation is in slope-intercept form and represents a line with slope 3 through the point (9, –4)?

Answer 1

do you have answer choices ?

Answer 2

there is a formula to use...
y - y1 = m(x - x1)
slope (m) = 3
(9,-4) -- y1 = -4 and x1 = 9
Now sub all that into the formula
Once you get that equation, you can then put it in slope intercept form which is y = mx + b.