It is so clear it is six feet, hello one foot shorter, the building is 5
10 inches would make him taller than 70, 9 inches would make him exactly 70
First set change the function f(x) to y so
that it would be

Then set y = 0

Then solve for x
X = - 3
To graph it, just plot the point (-3,0) on the x-axis
What's your question so I could help?