Answer:
sampling error i think
Step-by-step explanation:
We first solve to find the slope. The slope of the line is 5/3. Then we substitute that into the formula that is y-y1=m(x-x1). M represents the slope of the line and the x and y’s represent the point values. So we get 8-3=5/3(1+2). We get this solution if it asks you to figure out the slope along the way too.
If they ask you the equation when knowing only the two points you do 8-3=m(1+3)
They both mean the same thing ( it just depends on what the problem is specifically asking you about)
Plug the slope and coordinates into y=mx+b
2=-1(0)+b
2=0+b
2=b
Equation: y=-x+2
The answer is going to be 45 because it was 42
This really depends on the fraction; if there are variables in the equation, if they are full numbers,etc. I'd really recommend looking up khan academy on YouTube and that will really help you out!