To find the slope, Jackie makes right triangle P by using the graph of the line as the hypotenuse of the triangle as shown in th
e figure. To check her work, she repeats the process and makes a right triangle Q as shown. Which statement explains why the slope of the line should be the same when calculated with either triangle?
A
The two triangles are similar.
B
The two triangles are congruent.
C
One triangle is a translation of the other triangle.
D
The lengths of the hypotenuse of each triangle are equal.
A
The two triangles are similar.
B
The two triangles are congruent.
C
One triangle is a translation of the other triangle.
D
The lengths of the hypotenuse of each triangle are equal.
1 answer:
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Answer:
Use the appropriate entry method for piecewise functions for the graphing calculator of interest.
Step-by-step explanation:
For Desmos, the entry looks like ...
f(x) = {x ≤ 2: -2x-1,-x+4}
_____
For a TI-84 calculator, the entry may look like ...
Y₁ = (-2X–1)(X≤2) + (-X+4)(X>2)
The symbols ≤ and > come from the TEST menu, which is the (2nd) shift of the MATH key.
Note that the function is the sum of the pieces, each piece multiplied by a test. For something like 0≤x<2, the multiplier would be a pair of tests:
... (0≤X)(X<2)
