For what value of x will the line passing through the points A(x+14, 5) and B(2−3x, 8) be vertical?

x=-3

Step-by-step explanation:

we know that

The slope of a vertical line is undefined

The formula to calculate the slope between two points is equal to

we have

A(x+14, 5) and B(2−3x, 8)

substitute

so

If the slope is undefined

then

The denominator must be equal to zero

solve for x

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

answer: it's upside down and i can't read it

step-by-step explanation: