Find the equation of the line that passes through the points (1, 6) and (2, 8). By substitution in this equation, show that (3, 10) als

Question

Find the equation of the line that passes through the points (1, 6) and (2, 8).
By substitution in this equation, show that (3, 10) also lies on this line.

in progress 0
Nem 4 years 2021-07-22T22:08:09+00:00 1 Answers 13 views 0

Answers ( )

  1. thuthuy
    0
    2021-07-22T22:09:11+00:00
    Reply

    Answer:

    y = 2x + 4

    Step-by-step explanation:

    y2 – y1/ x2- x1  

    = 8 – 6 / 2 – 1

    = 2

    So now our equation is y = 2x + b (from y = mx+b). Now plug in the coordinates to find the y-intercept.

    y = 2x + b

    8 = 2(2) + b

    8 = 4 + b

    4 = b

    The y-intercept is 4.

    If we put one of the values like the x in the equation, we should get the y value.

    y = 2x + 4

    y = 2 (3) + 4

    y = 6 + 4

    y = 10

    (3,10)

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )