If you know the slope of a linear relationship as well as one of the points, you can determine if the relationship is proportional if the value of y is equal to the value of the slope times the x value.
<h3>When is a relationship proportional?</h3>
The linear relationship of x and y is said to be proportional if:
y = slope × x
This means that the value of y is directly related to the value of x such that when x is increased by a certain value, you get y.
If this condition is not satisfied then the relationship is not proportional.
The linear relationship above is therefore proportional if the value of y in the point is the same as x when multiplied by the slope.
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By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.
<h3>What is quadratic equation ?</h3>
Any equation of the form
where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .
Given work of Penelope is

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.
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Answer:
-8
Step-by-step explanation:
It's basically -4-4. Which means -(4+4) = -8.
Answer:
12 days
Step-by-step explanation:
420/35 to find amount of days to finish book
420/35 = 12
Answer:

Step-by-step explanation:
The total number of sums (not distinct) is
, because we're removing without replacement.
Count the sums that fit the stipulation (sum
5):
There are 8 sums that work. Therefore, the desired answer is 