Figure 758 shows y sin x and y 2 sin x Which function is y

Figure 7.58 shows y = sin x and y = 2 sin x. Which function is y = 2 sin x Find values for a and b.

Solution

from the graph g(x)>f(x)

we knoe 2sinx >sinx

so

g(x) is y =2sinx

f(x) is y =sinx

from graph 2sinx =sinx at 0 ,a

=>2sinx =sinx

=>2sinx -sinx =0

=>sinx =0

=>x =0,

so by comparing a =