As we move from the first point to the second, x increases from 2 to 10, so the change in x is 8. At the same time, y increases by 1 from 4 to 5. Thus, the slope is m = rise / run = 8/1 = 8.
Using the point-slope formula, we get y-4 = 8(x -2), or 8x - 16.
Isolate y. To do this, add 4 to both sides, obtaining:
y = 8x - 12.
This is the slope-intercept form for the equation of the line thru (2,4) and (10,5).
To calculate the x-intercept of a line written in standard form you simply remove the "y" and solve for x. And you remove the "x" when solving for y.
y=0 , solve for x
x=0 , solve for y
Here is an example: (solving for x)
2x + 3y = 6
2x + 3(0) = 6
2x = 6
2x/2 = 6/2
x = 3
Here is an example: (solving for y)
2x + 3y = 6
2(0) + 3y = 6
3y = 6
3y/3 = 6/3
y = 2
Answer: 3j-6k+4
Step-by-step explanation:
First you have to distribute the 3 to the j and the -2k since they are both in the parentheses. So it would look like (3*j) +(-2k*3)+4 and if you simplify that it is 3j-2k+4. After that there are no like terms so that is your answer.