which is true about the function y= x2 + 1? i. All points on the graph are above the origin ii All ordered pairs have positive x - values iii. All ordered pairs have positive y - values a. i only b. ii only c. i and ii d. i and iii

which is true about the function y= x2 + 1? i. All points on the graph are above the origin ii All ordered pairs have positive x - values iii. All ordered pairs have positive y - values a. i only b. ii only c. i and ii d. i and iii

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

1. which is true about the function y= x² + 1?

i. All points on the graph are above the origin

ii All ordered pairs have positive x - values

iii. All ordered pairs have positive y - values

a. i only

b. ii only

c. i and ii

d. i and iii

2. Which expression is undefined for x = 4 and x = -1?

a. x-1/ x+4

b. x-1/ x-4

c. x/ x²+3x-4

d. x/ x²-3x-4

3. The functions f(x)= -1/4x + 5/4 and g(x)= -4x+5 are inverses of each other.

a. True

b. False

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