# Trig

posted by .

The graph of y = 7cosx + 24sinx would be a sinusoid if it were plotted. What would be the first positive value of x at which there is a high point?

• Trig -

dy/dx = 0 at max or min
0= -7 sin x + 24 cos x
7 sin x = 24 cos x
x = 73.7 degrees
is that a max or a min?
d^2y/dx^2 = -7 cos x -24 sin x
that is negative so it is a maximum

## Similar Questions

1. ### Alg. 2

I know how to graph polynomial functions, but i'm having a hard time getting the second point on this one. f(x)=x(x-1)(x+2)(x+2). I graphed my zeros and made the right arrow go up and the left arrow go down. I plotted my first point …
2. ### chem lab

ok i have to plot a graph for my kinetics our teacher said in the end it'd the end the graph would give me numbers like this, y = 1.3x10^2x-11.2 r^2 = 1 but when i plot it, i get weird numbers. am i supposed to plot exponents as i …
3. ### Trigonometry

Sketch a height versus time graph of the sinusoidal function that models each situation. draw at lease three cycles. assume that the first point plotted on each graph is at the lowest point: a girl lying on a an air mattress in a wave …
4. ### Math

For the table that follows, answer the following questions: x y 1 1/2 2 1 3 3/2 4 - Would the correlation between x and y in the table above be positive or negative?
5. ### math

The graph of y = 7 cos theta + 24 sin theta would be a sinusoid if it were plotted. What would be the first positive value of theta at which there is a high point?
6. ### Math

For the table that follows, answer the following questions: x y 1 -8 2 -11 3 -14 4 - Would the correlation between x and y in the table above be positive or negative?
7. ### statistics

. For the table that follows, answer the following questions: x y 1 -1 2 -5 3 -9 4 - Would the correlation between x and y in the table above be positive or negative?
8. ### Trig

The graph of y-7 cosθ + 24 sinθ would be a sinusoid if it were plotted. What would be the first positive value of θ at which there is a high point?
9. ### math

Can someone please check my work?? 16. The bigger the number the slope is in the equation, what do you notice happens to the graph?
10. ### graphing help?

Graph ​ g(t)=4sin(3t)+2 ​. Use 3.14 for π . Use the sine tool to graph the function. The first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point. How would …

More Similar Questions