What function represents the graph y=4^x −1 ? A.q B.r C.s D.t

Mathematics

1 answer:

Svetlanka [38]3 years ago

7 0

You can substitute in values of x into the given equation y = 4x^2 - 1 and determine their corresponding y values. Then see which of these points correspond to the graphs q, r, s, t.

For example, if x = 0, then
y = 4(0)^2 - 1
y = -1
The point would be (0, -1)

If x = 1, then
y = 4(1)^2 - 1
y = 4 - 1
y = 3
The point would be (1, 3)

The only graph with points (0, -1) and (1, 3) is graph t.

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Answer:
s = 22°

Explanation:
1- getting the top right angle of line B:
We are given that:
the top right angle of line A = 158°
Since lines A and B are parallel, therefore, the top right angle of line A and the top right angle of line B are corresponding angles which means that they are equal
This means that:
Top right angle of line B = 158°

2- getting the value of s:
Now, taking a look at line B, we can note that:
angle s and the top right angle form a straight angle. This means that the sum of these two angles is 180°
Therefore:
180 = s + 158
s = 180 - 158
s = 22°

Hope this helps :)