영어 중학 수학 10문제

게시물 수정 , 삭제는 로그인 필요

Consider the relation Z = {(1, 5), (2, –4), (–1, 5), (–2, –4)}.
What is the domain of Z?

{–4, 5}

{–2, –1, 1, 2}

{–2, –1, 2}

{–1, 2, 5}

    

Consider the relation Z = {(1, 5), (2, –4), (–1, 5), (–2, –4)}.
Select the correct circle mapping of Z.

A

B

C

D

    

Consider the relation Z = {(1, 5), (2, –4), (–1, 5), (–2, –4)}.
What is the range of Z?

{5, –4}

{–2, –1, 1, 2}

{–2, –1, 2}

{–1, 2, 5}

    

Consider the relation Z = {(1, 5), (2, –4), (–1, 5), (–2, –4)}.
Select the graph that represents Z.

Graph A

Graph B

Graph C

Graph D

    

If x > 0 and y < 0, then the ordered pair (x, y) is in which quadrant?

I

II

III

IV

    

If f(x) = 2x + 1, and g(x) = 5x – 6, then what are f(–1) and g(3)?

f(–1) = 3; g(3) = 15

f(–1) = –1; g(3) = 9

f(–1) = 1; g(3) = 21

f(–1) = 0; g(3) = –1

    

Which of the following represent functions? Select all that apply.

	a.
	b.
	c.
	d.
	e.
	f.

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Select the x- and y-intercepts for the graph of 3x – 2y = 18.

(3, 0); (0, 2)

(–6, 0); (0, 18)

(18, 0); (0, –2)

(6, 0); (0, –9)

    

Change the equation 5x + 4y = –4 to slope-intercept form.

    

What is the slope and y-intercept of the line with equation 3x – 6y = 7?