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posledela
3 years ago
12

Describe the vertical line test.

Mathematics
2 answers:
SpyIntel [72]3 years ago
6 0

Answer:

The vertical line test is used to determine whether a graph line is a FUNCTION

when there is a line on a graph and you want to know if it is a function. put a straight line through it, up and down, and if it only passes through ONE POINT then it is a function if it touches the graph more than once than it is not.i

Step-by-step explanation:

sergiy2304 [10]3 years ago
6 0
Vertical line tests are used to determine whether a graph line is a function or not hope this helps
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Find tan A. Can someone help me with this one??
marta [7]

Answer:

tan A = 5/12

Step-by-step explanation:

To find tangent of a triangle, it is this ratio : opposite / adjacent.

Knowing that "A" is the given angle, 5 is the opposite and 12 is the side adjacent to "A". Putting these values together, the tangent is

5 (opposite)/12 (adjacent).

Hope this helps!

3 0
2 years ago
F(x) = x2 + 2x - 2<br> Show graph
Alexandra [31]

Answer:

Step-by-step explanation:

f(x) = x2 + 2x - 2  should be rewritten using " ^ " to indicate exponentiation:

f(x) = x^2 + 2x - 2.

We find a couple of key points and use the fact that this parabola is symmetric about the line

          -2

x = ----------- = -1.  When x = -1, y = f(-1) = (-1)^2 + 2(-1) - 2, or 1 - 2 -2, or -3.

        2(1)

Thus the vertex is at (-1, -3).  The y-intercept is found by letting x = 0:  y = -2.  The axis of symmetry is x = -1.

Graph x = -1 and then reflect this y-intercept (0, -2) about the line x = -1, obtaining (-2, -2).  If necessary, find 1 or two more points (such as the x-intercepts).

To find the roots (x-intercepts), set f(x) = x^2 + 2x - 2 = 0 and solve for x.

Completing the square, we obtain x^2 + 2x + 1 - 2 = + 1, or (x + 1)^2 = 3.

Taking the square root of both sides yields x + 1 = ±√3.  One of the two roots is x = 1.732 - 1, or 0.732, so one of the two x-intercepts is (0.732, 0).

6 0
3 years ago
Given: 2x + 30 = -4(5x -2);<br> Prove: x = -1
Lady_Fox [76]
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x = 1
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There was a back ….
choli [55]

13. 79

14. 79

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17. alternate interior angles

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I neeed help asap please
jekas [21]

With what I can help

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