Question

Find the range of the following functions
f(x)=2.5x+6, domain {x∈R,-5≤x≤5}
f(x)=x^2+16, domain {x∈R,0≤x≤10}

Answer 1

Answer:

(I)f(x)=2.5x+6

2.5x+6=0

2.5x=-6

x=-6/2.5

x=–60/25

x=12/5

x=–2.4

(ii)f(x)=x²+16

x²+16=0

x²=-16

x=√-16

x=4

Hope it works................................™✌️✌️