Answer:
The answer would be Choice F; (-3,7)
Step-by-step explanation:
- Plot the two guaranteed given points
- A, (-3,2) and C, (2,7)
- Find the point where the x and y would share and then form a right angle. This is called being Perpendicular.
- So, take the <em>x</em> of A, and the <em>y</em> of C and you have the coordinates of B.
(-3,7)
I think this a linear function. The graph has a constant flow of going up. In other words, it is linear.
5cos (2x)+7=cos (2x)+8, 4cos (2x)=1, cos (2x)=1/4, 2x=arccos(1/4), x=(1/2)arccos (1/4). I used x instead of theta, and arccos is cos inverse
Answer:
<u>Given expression:</u>
<u>The first root is valid when:</u>
- 2x + 2 ≥ 0 ⇒ 2x ≥ - 2 ⇒ x ≥ - 1
<u>The second root is valid when:</u>
- 6 - 4x ≥ 0 ⇒ 4x ≤ 6 ⇒ x ≤ 1.5
<u>So the variable x can get values within interval:</u>
- -1 ≤ x ≤ 1.5 or
- x = [-1, 1.5]
