Question

Look at this graph. 100 70 0 10 20 30 40 50 60 70 80 90 100 What is the equation of the line in slope-intercept form? Write your answer using integers, proper fractions, and improper fractions in simplest form. Submit

Answer 1

In the form solope intercept we need to find the slope and the intercept, so we can see that the intercept in the graph and is:

$b=70$

now to find the slope we can use this equation:

$m=\frac{y_2-y_1}{x_2-x_1}$

and we replace ywo coordinates so I use ( 0,70) and ( 10,80) so the slope will be:

$m=\frac{80-70}{10-0}=\frac{10}{10}=1$

So the equation is:

$y=x+70$