(-5,1)(6,-2)
slope = (-2-1) / (6-(-5) = -3/(6 + 5) = -3/11
y = mx + b
slope(m) = -3/11
(-5,1)...x = -5 and y = 1
now we sub and find b, the y int
1 = -3/11(-5) + b
1 = 15/11 + b
1 - 15/11 = b
11/11 - 15/11 = b
-4/11 = b
equation in slope int form : y = -3/11x - 4/11
3/11x + y = - 4/11....multiply by 11
3x + 11y = -4 <== standard form
(4,-2)(4,8).....if u will notice, both the x values are the same. This means the lines are vertical with an undefined slope. Your equation is : x = 4.
Blah blah blah blah blah blah <- (to fill space) the answer is C
Answer:
410? I don't know. Sorry if it is wrong.
The answer is 240cm^2, so B.
<span>Surface Areas of Pyramids and Cones Practice: connexus
</span>1) B, 448cm^2
2) D, 209pi cm^2
3) D, 351m^2
4) B, 240cm^2
5) C, 561.1pi cm^2
Just took it so they are all correct! your welcome