Plants allows gas exchange and many other functions to help the ecosystem. Correctly match the words on the with the explanations.

Words:

Guard Cells

meristematic tissue

root hairs

xylem

Phloem

Possible explanations:

Growing sections

increases surface area for water absorption

open and close to allow gas exchange

vascular tissue for movement from roots to leaves

vascular tissue for movement from leaves to roots

airlines i think? or a cruise boat? does this work out for u? ?

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.