Answer:
6. -4x+3 7. 2x+24 8. 4x+3
Step-by-step explanation:
The formula to find slope is y2-y1/x2-x1. With y2 serving as any y value on the table that is not whatever you decide as your y1 value, same goes for the x values.
y2 and x2 should be from the same line in the table, same goes for x values.
Explaining #6: I used point (2,-5) and (1,-1).
y2=-5, y1=-1, x2=2, x1=1
Plug values into slop equation--> (-5-(-1)/(2-1)= -4
To find the y-intercept you would either take the formula y=mx+b and plug in a point from the table and slop you just found to find b. Or when x=0 on the table the y value is your b/y-intercept.
Hope this helped and you can understand!