Answer:
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Step-by-step explanation:
Answer:
The total price is $529.74
Step-by-step explanation:
This question is an example of percentage increase.
To work out the total price you would first have to convert the percentage into a decimal. You can do this by dividing the percentage of 8% by 100, this gives you 0.08. This is because percentages are out of 100.
The next step is to add the value of 0.08 and 1, this gives you 1.08. This is because you are working out the percentage increase.
The final step is to multiply the amount of $490.50 by the value of 1.08, this gives you $529.74. This is because we are finding the percentage increase of 8%.
1) Divide 8 by 100.

2) Add 0.08 by 1.

3) Multiply $490.50 by 1.08.

I can help with 17-20:)
Slope = m = y2 - y1/ x2 -x1
So, you have already found the y1 and y2 and x1 and x2.
So, plug the numbers into the equation:
3 - 1/(-5) - (-2)
4 - (-3)/(-1) - 1
(-5) - 5/2 - 4
2 - (-1)/(-1) - 1
Then solve.
(Btw, the formula looks like this:

Hope this helps!!!
Algebraic expresion: 56-2x
The slope is:


Hence, each topping of the pizza cost $1.5