Answer:
a.the slope of the line is 1.5
Step-by-step explanation:
Hello
if two points of a line are known(P1 and P2), it is possible to find the slope of the line, the slope of a line is given by:
\(slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\)
\(P1=(x_{1} ,y_{1}) \\P2=(x_{2} ,y_{2})\)
Step 1
define
\(P1=(84,80) , x_{1}=84 ,y_{1}=80\\P2=(74,65) , x_{2}=74 ,y_{2}=65\)
Step 2
put the values into the equation
\(m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\m=\frac{65-80 }{74-84}\\m=\frac{-15}{-10}\\ m=\frac{15}{10}=\frac{3}{2}=1.5\)
the slope=1.5
I hope it helps, have a great day
