Question

Find the equation of a straight line that passes through:

(0, 4) and (3,10)

Answer 1

Using y - y1 x - x1
----- = ----
y2 - y1 x2 - x1

Answer 2

do u mean
y2-y1
m=------
x2-x1
?

Answer 3

y=2x+4 is ur answer

Answer 4

where did you get the 4 from, can you explain how to you got it?. I appreciate it!

Answer 5

slope intercept form of a line:
y=mx+b
i assume u kno how i got m=2
so then our equation is
y=2x+b
now we need to solve for b so we use 1 of our points and input the values. im gonna use (0,4) cuz its the easiest
4=2(0)+b
4=b
so y=2x+4

Answer 6

Many Thanks, so using your explanation can you tell me if this is right?

for the next question (2, 1) and (-2, -7)

y = -8x + b
1 = -8(1) + b
1 = -8 +b
8 + 1 = b
9 = b
y = -8x + 9

Answer 7

isshan answered that on ur post