Answer: The steps and answers to the first two are below but you need to understand slope = change in y / change in x = y2 - y1/ x2 - x1
And you need to understand y = mx + c
m= slope c is y intercept
Substitute either point given - only use one as the x and y and find c
Step-by-step explanation:
1. You need to follow the steps -
the point is given as (2,5) = (x,y)
So what this means is x =2 and y =5
Simple substitutions is the step 5 = 3 x 2 + c
5 = 6 + c or easier to see is c + 6 =5
subtract 6 from both sides c + 6 = 5
-6 -6
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c = -1
2.
x1,y1 x2,y2
( 3,2) and (5,6) are two points on the line
you already calculate the slope which is m = noy2-y1/x2-x1 = 6-2/5-3 = 4/2 = 2
Remember y= mx + c
y = 2 x + c
now substitute in (3,2) which is (x1, y1) into the x and y in your equation
2 = 2 (3) + c
2 = 6 + c
subtract 6 from both sides
-4 = c
Now you should use this and do your last question yourself
