Dear Nicky37, 300 seconds is only 5 minutes.
-x = 4 - 2
-x = 2
x = -2
Explanation:
To find variable x we need to move positive 2 to right hand side which will become negative 2 and when 4 is substrated from 2 we get positive 2 and to make variable x positive we need to take negative sign to right hand side.
To find the slope given two points, just solve the equation (y1-y2)/(x1-x2)=m. So (2-r)/(r-5)=0. To get the slope to be 0, you need only the numerator to be 0 (if the denominator is 0, the slope is undefined).
So 2-r=0, and r=2.
Answer:
1 st expression is used in this
Try a calculator! It should help you!!!