okay soooooo for #2 and #3 the y intercept is where the line crosses the horizontal line(y) the x intercept is where the line crosses vertical line(x) the slop is the rise over run of the blue line. from a point that is complete. so here is the answer to #2:
slope :1
y-intercept :0
x-intercept:0
#3
slope:1
y-intercept :2
x-intercept:-2
for number one I will let you do. there will be decimals in your answer. Have fun with mathematics and do your best!