Answer:
y =-2x+7
Step-by-step explanation:
Hello : let A(2,3) B(1,5)
the slope is : (YB - YA)/(XB -XA)
(5-3)/(1-2) = 2/-1 =-2
an equation is : y=ax+b a is a slope
y = -2x +b
the line through point (2,3) : 3 = (-2)(2)+b
b = 7
the equation is : y =-2x+7
The groups walking speed is or
we know that
To find the speed divide the distance by the time
so
Convert to mixed number
a = 6, b = 4, c = 2
Step-by-step explanation
see attached