Answer:
Point slope: y-7=2(x-3)
Y-intercept: y=2x-13
Putting it in point slope:
First find the slope*
Then use this format:
y-y cord=slope(x-x cord)
Then just pick any point and fill it in!
y-7=2(x-3)
Putting it in y-intercept format:
To put this in y-intercept form you need to find the y-intercept. To do this you need to solve the equation from the point slope: y-7=2(x-3)
to solve it first distribute:
y-7=2(x-3)
2x-3=-6
y-7=-6
then even it out to get the y alone.
y-7=-6
+7 +7
y=-13
and that's your y intercept so now fill in this format: y=slope x+ y-intercept
y=2x-13
*Finding slope:
First you need to find the slope. To find the slope you can subtract both x's and both y's like this:
-5-1 and 7--5
always put the cord in the first pair first.
-5-1 =-6
Its not 4 because the 5 is negative a negative number - a positive number will make the number go up but rember that means the value goes down.
7--5= 12
Unlike subtracting a positive from a negative subtracting a negative from a positive is like adding the number and its value go up. Then you can put the slope together by place the difference of the y's on top of the fraction and the difference of the x's on the bottom like this: 12/6 then you need to simplify that. Fractions are basically division problems so solve the equation.
12/6=2
And that's your slope!