Find the slope of the line given its graph. (Rise over run)

-3
1/3
3
6
coordinates are (0,1) and (-2,-5)

5 answers

To find the slope of the line given two points, you can use the slope formula:

\[ m = \frac{y_2 - y_1}{x_2 - x_1} \]

In this case, the coordinates you provided are (0, 1) and (-2, -5). Let's assign the points:

  • Point 1: (x1, y1) = (0, 1)
  • Point 2: (x2, y2) = (-2, -5)

Now, substituting these values into the slope formula:

\[ m = \frac{-5 - 1}{-2 - 0} \] \[ m = \frac{-6}{-2} \] \[ m = 3 \]

So, the slope of the line is \(3\).

The equation 4= 4x gives the relationship between the number of goats, x, and the number of bales of hay needed per day, y. What is the constant of proportionality? What does it mean in this context?
The constant of proportionality is 4. There are 4 goats eating each bale of hay.
The constant of proportionality is 4. Every bale of hay feeds a goat.
The constant of proportionality is 4. Each goat needs 4 bales of hay per day.
The constant of proportionality is 4. The farm needs 4 bales of hay per day.

To understand the equation given, \(4 = 4x\), we can rearrange it to express the number of bales of hay needed (y) in terms of the number of goats (x).

Starting from the equation:

\[ 4 = 4x \]

If we assume \(y\) is the number of bales of hay and set it as:

\[ y = 4x \]

Now, we see that the equation indicates that for every goat (x), the number of bales of hay needed (y) is given by multiplying the number of goats by 4.

From this perspective, the constant of proportionality here is \(4\).

Now, interpreting this in the context of the problem:

  • The constant of proportionality \(4\) means that Each goat needs 4 bales of hay per day.

Thus, the correct interpretation is:

The constant of proportionality is 4. Each goat needs 4 bales of hay per day.

A figure skater practices for 9 hours each day in preparation for the Olympics. How many hours will this skater practice in 9 weeks?
81 hours
567 hours
7 hours
405 hours

To find out how many hours the figure skater will practice in 9 weeks, you need to multiply the daily practice hours by the number of days in 9 weeks.

First, let's determine the number of days in 9 weeks:

\[ 9 \text{ weeks} \times 7 \text{ days/week} = 63 \text{ days} \]

Now, multiply the number of hours practiced per day by the total number of days:

\[ 9 \text{ hours/day} \times 63 \text{ days} = 567 \text{ hours} \]

Thus, the skater will practice 567 hours in 9 weeks.