Slope: 3, y-intercept: 4, equation: y = 3x + 4
Answer: -5
First, coordinates are (x, y). You’re x is 3, so all you need to do it plug in x into your algebraic equation to find y. Then just plug both into (x, y) and you have your coordinates.
y=-2(3)+1
y=-6+1
y=-5
Decreasing [-8, -4] increasing [-1, 2]
(look at the slopes)