Answer:
1/2
Step-by-step explanation:
If y is the √3/2 on the unit circle, x must be either 1/2 or -1/2.
Hi there!
To find f(1), plug in x=1 into the equation
f(1) = -4(1) + 7
= -4 + 7
= 3
That's your answer.
Have an awesome day! :)
From your friendly Helper-in-Training, collinjun0827
Answer:

Step-by-step explanation:
To find your slope using two points, use the slope formula.

Your y1 term is -5, your y2 term is 4.
Your x1 term is -2, your x2 term is 4.

Now that we have your slope, you can use the slope and one of your points in point-slope form to find your y-intercept.

The area of the circle is πr², ie. 144π.
The volume of the cilinder is 12×144π = 1728π cm³.
I vote for answer A.