cost

<-- Enter Terms

With the function that you entered of cost, plot points, determine the intercepts, domain, range

Since you did not specify a qualifying variable or function notation in your expression, we will assume y
y = cost

Determine function type:
Since we have one of the standard trigonometric functions, this is a trigonometric function

Now Plot points from pi/6 to 2pi
tPlug in xƒ(t) = costOrdered Pair
cos[]1(2pi, 1)
11π/6cos[11π/6]0.44(11pi/6, 0.44)
7i/4cos[7i/4]0.55(7i/4, 0.55)
5π/3cos[5π/3]0.5(5pi/3, 0.5)
3π/2cos[3π/2]-E-16(3pi/2, -E-16)
4π/3cos[4π/3]-0.5(4pi/3, -0.5)
5π/4cos[5π/4]-0.55(5pi/4, -0.55)
7π/6cos[7π/6]-0.44(7pi/6, -0.44)
πcos[π]-1(pi, -1)
5π/6cos[5π/6]-0.44(5pi/6, -0.44)
3π/4cos[3π/4]-0.55(3pi/4, -0.55)
2π/3cos[2π/3]-0.5(2pi/3, -0.5)
π/2cos[π/2]6.8E-17(pi/2, 6.8E-17)
π/3cos[π/3]0.5(pi/3, 0.5)
π/4cos[π/4]0.55(pi/4, 0.55)
π/6cos[π/6]0.44(pi/6, 0.44)

Determine the y-intercept:
The y-intercept is found when t is set to 0. From the grid above, our y-intercept is 0.44

Determine the t-intercept
The t-intercept is found when y is set to 0
The y-intercept is found when y is set to 0. From the grid above, our x-intercept is 0

Determine the domain of the function:
The domain represents all values of t that you can enter
The domain is (-∞, ∞) or All Real Number

Determine the range of the function:
The range is all the possible values of y or ƒ(t) that can exist
The range is [-1, 1]