Section: Math

4) What is the equation of a line that has a point (2,-3) and a y-intercept of 4

1. y=-3.5x-4
2. y=-2x+4
3. y=-3.5x+4
4. y=x+4

All the selections utilize slope-intercept y=mx+b where b is y-intercept and x,y are points on line. Answers 2 and 4 produce the wrong results for y when you plug in x. Answer 1 has a y-intercept of -4 instead of 4. This leaves only Answer 3 as the correct choice.