Given :
Length of ramp( Hypotenuse ), l = 10 ft .
Length of base, b = 5 ft .
To Find :
How high were the porch steps.
Solution :
Let, height is h.
By Pythagoras theorem :

Hence, this is the required solution.
Answer:
i think y=3/4x-4.2
Step-by-step explanation:
Two numbers that can multiply to equal 40 but subtract to equal - 3.