the ratio of the price of a pencil to that of a book is 3 :4. if the price of a pencil is Rs. 15, find the price of a book?
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Answer:
Step-by-step explanation:
The slope intercept form of the line whose points are (1,5) and (-2,-4) is y=3x+2.
Given two points of a line (1,5) and (-2,-4).
We have to form an equation in slop intercept form.
Equation is relationship between two or more variables which are expressed in equal to form.Equations of two variables looks like ax+by=c.
Point slope form of an equation is y=x+mc where m is slope of the line.
From two points the formula of equation is as under:
(y-)=
*(x-
)
where are the points.
Putting the values of =1,
=-2,
=5 and
=-4.
y-5=(-4-5/-2-1)*(x-1)
y-5=-9/-3*(x-1)
y-5=3(x-1)
y-5=3x-3
y=3x-3+5
y=3x+2
Hence the slope intercept form of the line having points (1,5)(-2,-4) is y=3x+2.
Learn more about equation at brainly.com/question/2972832
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let's firstly convert the mixed fraction to improper fraction and then multiply.