Write the slope intercept form of the equation of the line which passes through the points (1,6) and (2,9)

A. y = 3x + 3
B. y= 2x + 3
C. y = 6x + 9
D. y = 3x + 6

Question

Write the slope intercept form of the equation of the line which passes through the points (1,6) and (2,9) 

A. y = 3x + 3 
B. y= 2x + 3 
C. y = 6x + 9
D. y = 3x + 6

solomonzelman · Answer

first find the slope, then find the point on the line that lays on the 0-x-axis

solomonzelman · Answer

your slope is (6-9)/(1-2)

anonymous · Answer

@SolomonZelman my sister says the answer is B is that correct?

solomonzelman · Answer

for sure not, because the slope is 3.

anonymous · Answer

so the slope has to be 3 so is the answer D?

solomonzelman · Answer

it is either A or D, to determine that find the y intercept.

anonymous · Answer

it's A, and you can recheck that by plugging in your x and see what you get out for y

solomonzelman · Answer

@jrn1007, don't give out plain answers!

anonymous · Answer

@jrn1007 @SolomonZelman thanks for both your help! i'll solve the rest

anonymous · Answer

Welcome!