Question

SEE ATTACHED:

Given f of x equals 5 times x minus 6 for x less than 4, equals x squared minus 2 for x between 4 and 6 inclusive, and equals 4 times x plus 10 for x greater than 6 find f ′(x) and give its domain.

5 for x less than 4, equals 2x for x greater than or equal to 4 and less than 6, and equals 4 for x greater than 6 Domain: All real numbers, x ≠ 6.

5 for x less than 4, equals 2x for x between 4 and 6, and equals 4 for x greater than 6 Domain: All real numbers, x ≠ 4, 6.

5 for x less than 4, equals 2x for x greater than or equal to 4 and less than 6, and equals 2 for x greater than 6 Domain: All real numbers, x ≠ 4.

5 for x less than or equal to 4, equals 2x for x between 4 and 6 including 6, and equals 4 for x greater than 6 Domain: All real numbers.

Answer 1

Was was the correct answer???? PLEASE HELP

Explanation:

Answer 2

differentiat each

dy/dx 5x-6=5
dy/dx x^2-2=2x
dy/dx 4x=4

domain will be all real numbers because the derivitives won't make any wierd values like divisiono by 0 or square roots of negatives

so ya, it is the last one