Question

What is the equation of the line that passes through the points (-2, 1) and (1, 10)?

Answer 1

Do you know the slope formula?\[m=\frac{y_2-y_1}{x_2-x_1}\]

Answer 2

y=ax+b

Answer 3

so a = m

Answer 4

y= \[\frac{10-1}{1-(-2)}\]

Answer 5

so \[m\]=3

Answer 6

y=3x+b

Answer 7

so now we sub x and y to get b

Answer 8

@moha_10, try writing everything in one post to make things ten times easier to read!

Answer 9

okay i will

Answer 10

to sub x by -2
and y by 10
so we got
10=3*(-2)+b
so finally b= 16
so y = 3x+16