13x - y = 19
-y = - 13x + 19
y = 13x + 19
Sine is positive while cotangent is negative. So this must mean cosine is negative since cos/sin = cot. In other words, cotangent is the ratio of cosine over sine.
Because cosine is negative and sine is positive, this places theta in quadrant 2
This is where x < 0 and y > 0. Recall that on the unit circle, x = cos(theta) and y = sin(theta).
The answer is choice B) quadrant II
Answer:
(0,-2)
maximum
Step-by-step explanation:
-x∧2-2 = -1 (x∧2) -2
so the vertex should be (0,-2)
As it is negative for the x∧2, so the graph opens downwards. So, the vertex is a maximum.
Answer:
No.
Step-by-step explanation:
The relationship is not proportional if it does not include (0, 0). Here, the point (1, 0) is your clue that there is no proportional relationship involved.
_____
The relationship is <em>linear</em>. A <em>linear</em> relationship is only a <em>proportional</em> relationship if the line goes through the point (0, 0).
