A straight line on a coordinate plane always represents a function. true or false
2 answers:
Answer:
False.
Step-by-step explanation:
We have been given a statement. We are asked to determine whether our given statement is true or false.
We know that a line is function, when each value of x corresponds to exactly one y-value.
We can also test whether a line using vertical line test. If a vertical line intersects a line exactly at one place, then line represents a function. If a vertical line intersects a line more than once, then line is not a function.
A straight line on a coordinate plane does not always represent a function because vertical lines in form , where a is any real number, will fail vertical line test.
Therefore, our given statement is false.
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Keywords:
<em>Cookies, boxes, sale, profit, unit cost </em>
For this case we have to bake an amount of 702 cookies, which were distributed in boxes of 18 for sale. Selling each box at the same price earned a profit of 136.50 dollars, you want to know the unit cost of each box of cookies.
Let be the number of boxes of cookies:
So, to know the number of boxes we divide 702 cookies among 18:
So, we have Tyler sold 39 boxes of cookies
Now, let be the cost of each box of cookies, to know the unit cost or sale price of the cookie boxes, we divided 136.50 dollars among 39 boxes of cookies, then:
Thus, the cost of each box was 3.5 dollars.
Answer:
The cost of a box is 3.5 dollars