<span>You need to know two points on your line, in order to find the slope.
If you're given the y intercept, that is one point, (0,a) where a is the y intercept.
If you're given the x intercept, that's another point, (c,0) where c is the x intercept.
You could also be given points on the line that aren't an x or y intercept. Let's call these points (r,s) and (j,k).
To find the slope of the line, you need just two points. Take the
difference of the y coordinates, and divide by the difference of the x
coordinates to solve for the slope.
Using our two generic points (r,s) and (j,k), we would solve for the slope m as follows:
m = (s-k) ÷ (r-j)
Hope that helped! </span>
Answer:
Step-by-step explanation:the answer is 3 ft
Of the four x-coordinates to choose only 1/√(11) belongs can belong to the unit circle.
The other three x-coordinates are greater than 1, then they are out of the unit circle.
The unit circle formula is x^2 +y^2 = 1
Then to find the y-coordinate given the x-coordinate you can solve for y from that formula:
y^2 = 1 - x^2
y = (+/-)√(1-x^2)
Substitute the value of x
y = (+/-)√{1 - [1/√(11)]^2} = (+/-) √{(1 - 1/11} =(+/-) √ {(11 -1)/11 =(+/-)√(10/11) ≈ +/- 0.95
(2x) + 11 < 44
x is multiplied by two because we are looking for twice of x. 11 is added to the 2x because we are looking for eleven more than the sum of twice of x. Since 2x + 11 is less than 44, we use the lesser than ( < ) symbol.
Answer:
x<-5 <--------o open circle
Step-by-step explanation:
