Question

Help!!!! Plssss!!! ASAP

Answer 1

The y-intercept is (0,-26)

Explanation:

Given two points P(a,b) and Q(c,d), the line that passes for both points can be found with the expression

`\displaystyle y-b=(d-b)/(c-a)(x-a)`

We'll take the first two points P(34,-52) and Q(51,-65) to find

`y=-(13)/(17)(x-34)-52\\ \\y=-(13)/(17)x-26`

Let's verify if the third point is on the line:

`y=-(13)/(17)68-26=-52-26=-78`

It belongs to the line. To find the y-intercept of the line, we set x to 0

`y=-(13)/(17)(0)-26=-26`

The y-intercept is (0,-26)