Answer
Explanation:
For exercises one- three, your slopes are m=, so thinking of the slope intercept form y=mx+b. Plug in the (x,y) coordinates into the equation
for example question 1:
1=4(3)+b
or for question 2:
7=-3(2)+b
For exercises 4 and 5, simply just find the y intercept by seeing where on the why axis the line is one a certain point. and to find the slope do the equation
y2-y1/x2-x1
for example number 4:
-1-2/4-2 and your slope would equal - 3/2
so your equation would be
y= -3/2+5
hope this helps ;)