Answer:
3
Step-by-step explanation:
if you draw a line y=2 will touch the graph in 3 points
Answer:
no
Step-by-step explanation:
if the ratio (yx) of two variables (x and y) is equal to a constant (k=yx) .in this case y is said to be directly proportional to x with proportionality constant k
Step-by-step explanation:
Here are four steps to help solve any math problems easily:
Read carefully, understand, and identify the type of problem. ...
Draw and review your problem. ...
Develop the plan to solve it. ...
Solve the problem.
<u><em>An equation:</em></u>
It is used to express exact values.
Therefore, we will use an equation when when know that the quantity given is strictly equal to a given value.
<u>Examples:</u>
1- Price of a kilo of apples is $2
This is translated as ........> cost of 1 kilo = $2
2- The length of a ruler is 30 cm
This is translated as ......> length = 30 cm
<u><em>An inequality:</em></u>
It is used to show relation or compare between a quantity and a value. Therefore, we use it when we find keywords as "at least, at most, greater than, less than, ..... etc"
<u>Example:</u>
1- The distance between two cities is at least 20 miles.
This means that the distance can be 20 miles or more
This is translated as:
distance ≥ 20 miles
Hope this helps :)
Let's remember that the coefficient in an algebraic expression is always the number that multiplies the variable. Now, in this case we have that the third term is -2x, then:
the coefficient of the third term would be -2