Consider two functions: g(x)=x2 and the linear function ​f(x)​ with slope 1 and y-intercept of 0.



Which statements are true?

Select each correct answer.




f(−1) is equal to g(−1) .

​ f(1) is equal to g(1) .

​f(x)​ is greater than ​g(x)​ on the interval ​ (0,1) ​.

​g(x)​ has a greater y-intercept than ​f(x)​ does.

Respuesta :

ANSWER

The correct answers are option B and C


EXPLANATION


A linear function with slope [tex]m=1[/tex] and y - intercept [tex]0[/tex] has equation, [tex]f(x)=x[/tex]

Option A

[tex]f(-1)=-1[/tex]

[tex]g(-1)=(-1)^2=1[/tex]

Therefore [tex]f(-1) \ne g(-1)[/tex]


Option B

[tex]f(1)=1[/tex]

[tex]g(1)=(1)^2=1[/tex]

Therefore [tex]f(1) = g(1)[/tex]


Option C

[tex]f(0.5)=0.5[/tex]

[tex]g(0.5)=(0.5)^2=0.25[/tex]

Therefore [tex]f(x) > g(x)[/tex]

on [tex](0,1)[/tex] See graph also.


Option D

At y-intercept, [tex]x=0[/tex]

This implies that,

[tex]f(0)=0[/tex]

[tex]g(0)=(0)^2=0[/tex]

Therefore g(x) does not have a greater y-intercept.

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