Which type of study best describes the following research most likely to be done? A teacher wants to know how fast all her stude
1 answer:
You might be interested in
Answer:
-1/2
Step-by-step explanation:
In a linear relationship, the rate of change of one variable with respect to the other is <em>constant</em>. When we talk about <em>change</em>, we're looking for a <em>difference</em> of values.
If we look at the first and second rows, the change in x is 1 - (-1) = 2, while the change in y is 9 - 10 = -1. Usually we refer to these changes as Δx and Δy (read like "delta-x" and "delta-y"), and the <em>rate of change </em>is the number we get by dividing one of these by the other.
The rate of change we're used to seeing, sometimes called the <em>slope</em>, is Δy/Δx. So, using the values we've already found:
Answer:
a)
b)
Step-by-step explanation:
a) We have to simplify the below expression in standard form.
The expression is
Now,
=
= {Since
}
=
= (Answer)
b) We have to simplify the below expression in standard form.
The expression is
Now,
=
= {Since
}
= (Answer)