Marta recorded the temperature at 8 p.m. as 56°F and the temperature at 8 a.m. the next morning as 36°F. Marta assumed the tempe
rature changed at a constant rate. She wrote an equation to find the number of degrees the temperature dropped each hour, h, of the night. Which equation did Marta write?
If you start with 8, 56 and 36 you add and subtract and get 12 then figure from the question the variable (h) and do the problem. Don't forget. take your time!
The equation of a line which has the slope m and passes through the point A(x1,y1) has the formula: y-y1=m(x-x1) in your case m= -5 ; A(x1;y1)=(1;-1) y-(-1)= -5(x-1) y+1= -5(x-1) answer is c
