Answer :

Answer:

The point (80,100) will not be on the line

Step-by-step explanation:

With this graph, we are able to see that the equation of the line is: y=4/5x. To find out if a certain point will be part of that line, we take the x value of the desired point and plug it into the equation to see if it will give us the desired y value. When we plug 80 into our equation, we will have y=4/5(80).

When we solve that equation, we will get that the y-value when the x-value is 80 will be 64 and not 100. This tells us that the point (80,100) is not part of the line

moelamarre
so slope=m=rise/run=(y2-y1)(x2-x1)=(5-0)(4-0)=5/4
y Intercept =b=0. where line crosses y-axis

line equation y=mx+b
so y = 5x/4+0 if x=80
y = 5(80)/4
y=100
therefor (80,100) is on the line

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