16-1 Section QUIZ
1
Which of the following statements is TRUE?
a. The relative frequency of an allele is not
related to whether the allele is dominant or
recessive.
b. Mutations always affect an organism's
phenotype.
C. Crossing over decreases the number of
different genotypes that appear in an
offspring
d. Evolution does not affect the frequency of
genes in a gene pool.
PEARSON
Slide
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sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate

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.

look at this it will give you up to 17 answers  

answer; projective;