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Finding the Maximum Values of a Function

Is the sentence true or false?

The maximum value of a function h(x)=xh(x)=x over interval [0,4][0,4] is 4.

Find the maximum value of a function h(x)=x+1h(x)=x+1 over interval [1,5][-1,5] .

Find the maximum value of a function h(x)=x+1h(x)=x+1 over interval [1,2][-1,2] .


Find the maximum value of a function g(x)=xg(x)=\sqrt{x}  over interval [0,9][0,9] .


Is the sentence true or false?

The maximum value of a function h(x)=x2h(x)=x^2 over interval [0,4][0,4] is 4.

Find the maximum value of a function g(x)=x2g(x)=x^2 over interval [0,4][0,4] .


Is the sentence true or false?

The maximum value of a function h(x)=xh(x)=|x| over interval [7,4][-7,4] is 7.

Find the maximum value of a function g(x)=x3g(x)=x^3 over interval [0,3][0,3] .


Is the sentence true or false?

The maximum value of a function h(x)=x+4h(x)=x+4 over interval [2,3][-2,3] is 7.

Find the maximum value of a function g(x)=x3g(x)=x^3 over interval [1,2][-1,2] .