Answers are
Slope can be found
1) on a graph, find two points and use the formula y2 - y1 over x2 - x1
2) on a graph, from two points, count your run (up and down) over your run (left to right)
3) in an equation, it’s the coefficient or the number next to x
Y intercept
1) On a graph, the y-intercept can be found by finding the value of y when x=0. This is the point at which the graph crosses through the y-axis.
2) find two points on a line, write an equation for that line by finding the slope between those points, then solving for the y-intercept in the slope-intercept equation y=mx+b.
B is your y intercept
3) in standard form equation, plug in 0 for the x variable and solve for y