Answer:
y = -4x +2
Step-by-step explanation:
As x-values increase by 1, y-values decrease by 4. The slope of the line is ...
... m = (change in y)/(change in x) = -4/1 = -4
We can use the first (x, y) pair as a point to use in the point-slope form of the equation of a line. That form can be written, for slope m and point (h, k) ...
... y = m(x -h) +k
using m = -4 and (h, k) = (1, -2), we can fill in the numbers to get ...
... y = -4(x -1) -2
... y = -4x +4 -2 . . . . eliminate parentheses
... y = -4x +2 . . . . . . slope-intercept form
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<em>Alternate approach</em>
After you recognize that a change in x of 1 gives a change in y of -4, you can work backward one step to find the table value for y corresponding to x=0. That will be -2+4 = +2. Now, you know both the slope (-4) and the y-intercept (+2), so you can write the equation directly from this knowledge:
... y = -4x +2
to find the radius you divide the circumference by 2pi
area is pi times radius to the 2nd power
Answer:
1) 5/2 or 2.5
2) 5/2 or 2.5
Step-by-step explanation:
1) 5/2 = 2.5
2) 10/4 = 5/2 = 2.5
Because the hypotenuse of both are the segments of the same line and straight lines have the same gradient for all segments
The volume of one pan is 192 units cubed. The volume of the three pans is 576 units cubed.
I think the answer is x^4
