9514 1404 393
Answer:
Step-by-step explanation:
The vertex form of the quadratic equation is ...
y = a(x -h)² +k . . . . . . . . . vertex (h, k); vertical scale factor 'a'
Given the vertex, we can find the scale factor by substituting the given point values:
11 = a(-1 -3)² -5
11 = 16a -5
a = (11 +5)/16 = 1
So, the vertex form equation is ...
y = (x -3)² -5 . . . . . vertex form
Expanding this gives the standard form.
y = x² -6x +9 -5
y = x² -6x +4 . . . . . standard form
Answer:
125.7 square inches
Step-by-step explanation:
The surface area of a cylinder is the sum of the areas of the two circles on each end and the area encircling "rectangle". Note that the length of this "rectangle" is the height of the can, while the width is the perimeter of the circle. The full equation is:
Check the picture below.
