Three times the difference of a number and nine.
1 answer:
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Answer:
(2, -2) and (1,-3)
Step-by-step explanation:
The y-intercept means that the coordinate where the line touches the y-axis. In other words, the y value(-4) when x=0. The result is (0, -4). The y coordinate also can be used to fill c variable of y=mx + c
We have 2 coordinates now, (3, -1) and (0, -4), then we can find out the line equation. We need to find the slope (m), the formula will be:
m= y2-y1 / x2-x1=
m= -4 - (-1) / (0-3)
m= -3/-3= 1
The line equation is:
y= mx + c
y= 1x + (-4)
y= x-4
After you have the equation, you can try to test the point individually to find if any of them fit the equation. You can also draw a line on the graph and see if any point touches the graph.
Red dot is the two point we have, red line is straight line that made from both point, and blue point is the option. As you can see on the graph, the points that touch the line will be (2, -2) and (1,-3)
Answer:
Square
Step-by-step explanation:
Given are 3 options with same dimension of 12 feet. The condition is base area should be minimum for maximum volume
A) A hemisphere has
B) A cube with side length 12 ft
C) A cone with diameter 12 ft and height 10 ft
D) A square pyramid
To maxmize the ratio of floor area to volume, we have to maximise the ratio of volume to floor area
Hence of these 4 figures square is the best one that meets the criteria