Answer:
The tip would be $4.63 unless you round it to $5
Step-by-step explanation:
Answer:
54.75 = 26 + x
Step-by-step explanation:
You can solve for x by subtracting 26 from both sides of the equation.
Answer:
(a) Horizontal line test
Step-by-step explanation:
A relation that is a function already passes the vertical line test. If it has an inverse function, that function must also pass the vertical line test.
<h3>Inverse relation</h3>
The inverse relation will be the same graph reflected across the line y=x. That is, points that are horizontally aligned on the relation graph become vertically aligned on the inverse relation graph.
<h3>Inverse function</h3>
If the inverse relation is to be a function, then there must be no points on its graph that are vertically aligned. This requirement translates to the requirement that there be no horizontally-aligned points on the graph of the original relation. The "horizontal line test" checks for horizontally aligned points. If there are none, the test is said to <em>pass</em>.
A function will have an inverse function if it passes the Horizontal Line Test.
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<em>Additional comment</em>
The attached graph shows a function (red curve) that <em>does not pass the horizontal line test</em>. Its inverse relation is the green curve, which you can see is <em>not a function</em>. It does not pass the vertical line test.
The line y=x is shown (dashed orange) so you can see the symmetry of the function and its inverse.
We could say that every 2 years, Patrick gains 7 kg (after reaching a certain age under 12) making it
7(y/2) (if y = every year after the age given, and we divide by 2 because it's every 2 years, not one)+w (patrick's weight at the start)= w (weight)
B- We could say that w(current weight)+100000=b (new weight)
C - If patrick weighed 43 kg when he was 12 , how much would he weigh when he was 20?
D - Using the correct equation, we have 7(20/2-12/2)+43=7(4)+43=28+43=61
Using the incorrect equation, we have 43+100000=100043 kg