Slope = -2/1
work is provided in the image attached.
f(x)= -x^2+4 plotted vertex (0,4)
Answer:
x=3
Step-by-step explanation:
Right triangle so you can use pythagorean theorem
a squared + b squared = c squared
b=x
14^2 + b^2= 17^2
14+b=17
b=3
