Write the equation of the line that passes through the points (-2,1) and (0,8)
2 answers:
Answer:
The equation of the line is y = 7/2x + 8
Step-by-step explanation:
The equation of the line is in the form y = mx + b, where m is the slope and b is the y-intercept. To find m, you just have to subtract the two points from each other.
= 7/2
The y - intercept always has an x-value of 0, so the y-intercept would be 8.
So, the equation is y = 7/2x + 8
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Given:
The price of bananas can be determined by the equation P=0.25n, where P is the price and n is the number of bananas.
To find:
The constant of proportionality
Solution:
We have,
...(i)
where P is the price and n is the number of bananas.
Price P is directly proportional to the number of bananas. So,
...(ii)
Where, k is the constant of proportionality.
On comparing (i) and (ii), we get
Therefore, the constant of proportionality is 0.25.