Which graph represents a reflection of f(x)=2(0.40^x across the y-axis ?
1 answer:
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Number lines are used to represent numbers on a line at a regular interval.
<em>David's statement is correct, while Ashley is incorrect</em>
The expression is given as:
<u>Using number lines</u>
The end result on David's number line is 5.29, while the end result on Ashley's number line is 5.25
The correct result of the expression is 5.29 shows that David is correct
See attachment for the number lines that illustrate <em>David and Ashley's statements</em>
<u>Another way</u>
David's statement can be expressed as:
While, the expression for Ashley's expression is:
The original expression is:
By comparing the above expressions, we can conclude that <em>David is correct</em>
Read more about number lines at:
Check the picture below.
now, since we know what "f" is, let us use the CNT triangle with the small COR one.
Answer:
WZ = 51 mm.
Step-by-step explanation:
The trapezoid figure STUV is a scaled version of figure WXYZ.
The figure STUV to figure WXYZ has a scale factor of 3 : 1.
So, the corresponding lengths of the two figures will be in the 3 : 1 ratio.
Then,
So, SV = 3 × WZ
⇒ 153 = 3 × WZ
⇒ WZ = 51 mm (Answer)