Question

*need to know in the next hour*

Answer 1

Answer:

There are 20 blocks per pounds.

Step-by-step explanation:

Given: A best fit line graph for the number of blocks per pound by researching the weights of different sets of blocks.

We have to find the number of blocks per pounds.

Consider the given best fit line graph.

We consider two points through which line passes.

Since, Point (2.5,50) and (5,100) lies on the line.

Slope of line gives the number of blocks per pounds.

Slope between two points is given as

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(2.5,\:50\right),\:\left(x_2,\:y_2\right)=\left(5,\:100\right)$

We get,

$m=\frac{100-50}{5-2.5}$

Simplify, we have,

m = 20

Thus, there are 20 blocks per pounds.

Answer 2

Answer:

20 blocks per pound

Step-by-step explanation:

We can see the line of best fit goes through the points (0, 0) and (5, 100).  WE will use these to find the slope:

$m=\frac{y_2-y_1}{x_2-x_1}$

Using our points,

$m=\frac{100-0}{5-0}\\\\=\frac{100}{5}\\\\=20$

This makes the slope 20 blocks per pound.