Question

What is the equation in point-slope form of the line passing through (–2, 1) and (4, 13)?

a. y – 1 = –2(x – 4)

b. y – 1 = 2(x + 2)

c. y – 13 = –2(x + 2)

d. y – 13 = 2(x + 4)

Answer 1

first find the gradient using the formula m=(y2-y1)/(x2-x1).
tell me the gradient after evaluting it?

Answer 2

m = 13 - 1
--------
4 + 2

Answer 3

m = 2

Answer 4

yes right.

Answer 5

choice 1 and 3 are eliminated

Answer 6

yes good.the option are just the rearrangement of the slope formula.did you observe that?

Answer 7

yes

Answer 8

the number with y is y-coordinate while the number with x is the x-coordinate.

Answer 9

so which option is right?

Answer 10

the second

Answer 11

yes you are right.

Answer 12

thank you!