Simplify: 20 sin(2x) cos(2x)
1 answer:
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Answer:
5
Step-by-step explanation:
The equation is given in slope-intercept form. Slope-intercept form is a way of writing the equation of a line in the format
, such that the coefficient of the parameter (x) is the slope, and constant (b) is the y-intercept. What that essentially means is,
The slope of a line is its rate of change, and the y-intercept is where the graph of the line intersects the y-axis. One can apply this knowledge here by saying that, the equation is given in the slope-intercept form, and the coefficient (
) equals (
), therefore the slope is (
).
Answer:
Option D.
Step-by-step explanation:
The vertex form of a parabola along y-axis is
...(1)
where, (h,k) is vertex and a is a constant.
From the given graph it is clear that the vertex of the parabola is (0,2). So, h=0 and k=2.
...(2)
The graph passing through (6,5). Substitute x=6 and y=5 in the above equation.
Substitute in equation (2).
Therefore, the correct option is D.