Write the equation of the line that passes through the given points. ​(0​,−1​) and ​(−3​,−9​)

Question

Write the equation of the line that passes through the given points.
​(0​,−1​) and ​(−3​,−9​)

in progress 0
Mít Mít 4 years 2021-08-27T08:00:06+00:00 1 Answers 14 views 0

Answers ( )

  1. taiduc
    0
    2021-08-27T08:01:28+00:00
    Reply

    Let’s write the line in slope-intercept form.

    y = mx + b

    m = slope

    b = y-intercept.

    Let’s use the two points to calculate our slope.

    Slope = (-9 -(-1)) / -3 = -8 / -3 = 8 / 3

    Our line so far: y = 8/3x + b

    Let’s plug one of our points into the equation to find b.

    -1 = 8/3(0) + b

    -1 = b

    Our line is: y = 8/3x – 1

Leave an answer

Browse

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