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Can someone help me with this problem and help me understand it better

Can someone help me with this problem and help me understand it better-example-1
User Dicle
by
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1 Answer

7 votes

Answer:

Proved

Explanation:

Given

The attached table

Required

Prove that Lydia is incorrect

Firat, calculate the slope (m)


m = (y_2 - y_1)/(x_2 - x_1)

Where:


(x_1,y_1) = (5,19)


(x_2,y_2) = (4,15)

So, we have:


m = (15 - 19)/(4 - 5)


m = (-4)/(-1)


m=4

The equation is then calculated using:


y - y_1 = m(x-x_1)

Where:


(x_1,y_1) = (5,19) and
m=4

This gives:


y - 19 = 4(x-5)


y - 19 = 4x-20

Make y the subject


y = 4x-20+19


y = 4x-1

The above shows the equation. Hence, the Lydia is correct

User DotNetRussell
by
7.7k points