The function graphed is reflected across the x-axis to create a new function. which is true about the domain and range of each function? both the domain and range change. both the range and domain stay the same. the domain stays the same, but the range changes. the range stays the same, but the domain changes.

the correct answer is:

the domain stays the same, but the range changes.

explanation:

by reflecting a function across the x-axis, the y-values change.   this is because a reflection through the x-axis negates the y-values, making them the opposite of what they were.

the x-values, however, stay the same.   this means the domain, the x, stays the same, while the range, the y, changes.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.