For a graph to move up, we must add the value of how much we want to move up outside the function.
So if the original graph , thus
Hope that helps!
two unidentified flying discs are detected by a receiver, the angle of elevation from the receiver to each disc is 38.48 degrees
. The discs are hovering at a direct distance of 826metres and 1.296km from the receiver. Find the difference in height between the two flying discs.
1 answer:
Answer:
292.45 m
Step-by-step explanation:
Both disk are at an angle of 38.48°
From the image below we calculate as,
For disk B, direct distance is 1.296 km from receiver = 1296 m
Vertical height from ground will be = 1296 x sin38.48 = 806.42 m
For disk A, direct distance is 826 m from receiver
Verival height above ground = 826 x sin38.48 = 513.97 m
Difference in height between disks is 806.42 - 513.97 = 292.45 m
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Lin should aim the ball at 7.8 feet away from point B
From the question (see attachment), we have the following equivalent ratios:
This is so because triangles ABE and DCE are similar triangles.
Such that:
So, we have:
Make CE the subject in
Substitute 20 - BE for CE in
Express as ratio
Cross multiply
Open bracket
Collect like terms
Divide both sides by 41
Hence, she should aim at 7.8 feet away from point B
Read more about similar triangles at:
The coordinate pair can be obtained from the given equation by
rearranging the equation to make <em>y</em> the subject of the equation
- The table of values obtained from the given equation is presented as follows;
- The graph showing the points in the above table is attached
Reason:
The given equation is presented as follows;
2·x - 4·y = 12
(a) The values are found by making either <em>x</em>, or <em>y</em> the subject of the
formula, and inputting values as follows;
2·x - 4·y = 12
= 4·y
4·y = 2·x - 12
The rearranged equation is therefore
Plugging in values of <em>x</em>, (0, 1, 2, 3) to find the corresponding y-values gives;
x = 0
- x = 1
- x = 2
x = 3
x = 4
<u>The table of values</u> is therefore;
The <u>graph of the points</u> can be <u>plotted</u> using MS Excel as presented here
Learn more here:
