Explanation:
The equation for this problem can be modeled in y = mx + b form.
m represents the rate of change and b represents the initial value or constant.
y = 10x + 20
x represents the number of hours he spent delivering newspapers
y is his total money after whatever number of hours he worked
The rate is 10, because it determines how much money he earns for each hour.
The y-intercept is 20, representing the starting amount of money in his bank account.
For this case we have:
Cost of manufactures of T-shirts
where x represents the number of T-shirts
Part A:
Substituting in the total cost equation you have to:
Thus, the cost of 8 shirts will be
Part B:
If then
Thus, the cost of 12 shirts will be
Answer:
The points<em> (-3, 9), (-1, 1), (0, 0), (1, 1) and (3, 9)</em> lie on the graph of the function y = x²
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given the equation y = x²
When x = -3; y = (-3)² = 9
When x = -1; y = (-1)² = 1
When x = 0; y = (0)² = 0
When x = 1; y = (1)² = 1
When x = 3; y = (3)² = 9
The points<em> (-3, 9), (-1, 1), (0, 0), (1, 1) and (3, 9)</em> lie on the graph of the function y = x²
Find out more on equation at: brainly.com/question/2972832
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Doing a bit of guess and check, we can notice that the amount of leaves is one less than the number of inches of vine. Writing it out, we get x-1=y (the amount of inches-1=the amount of leaves)