Answer:
Domain is [-5, 5]
Range is [-3, 17]
Explanation:
R1 = y = 2x + 7, where x∈ R and -5 ≤ x ≤ 5
The domain is given by the all possible input values of x . Here the function is defined for -5 ≤ x ≤ 5, so the domain is [ - 5, 5].
The range is given by the output values of he function.
When x = - 5
f (- 5) = 2 (-5 ) + 7 = - 3
When x = 5
f (5) = 2 (5) + 7 = 17
So, the range is [ -3 , 17].