Y-y1=m(x-x1)
for slope=m
a point =(x1,y1)
slope=2
point= (-1,3)
y-3=2(x+1)
y-3=2x+2
y=2x+5
test given points
A.
(1,5)
5=2(1)+5
5=7
false
B.
(1,4)
4=2(1)+5
4=7
false
C.
(-3,2)
2=2(-3)+5
2=-6+5
2=-1
false
D.
(0,5)
5=2(0)+5
5=0+5
5=5
true
answer is D
Answer:


Step-by-step explanation:
We can subtract the first equation from the second to find the value of
, although we can also do this vice versa.



Now, we can use substitution to solve for
:
(pick any equation for substitution)


Hope this helps :)
Answer:
club godzilla
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>The correct one is given below:</u>
- 5 - 4w = - 17
<u>+5 + 5</u>
-<u> 4</u>w = <u>-12</u>
- 4 -4
w = 3
The error is 4w instead of - 4w
Answer:
When we know all 3 sides, we use Heron's Formula
area = sqrt [s *(s-a) * (s-b) * (s-c)]
where "s" is the semi-perimeter which in this case equals
s = (6 + 8 + 12) / 2 = 13
area = sqrt [13 * 5 * 7 * 1]
area = sqrt 455
area = 21.3307290077
area = 21.33 square feet (rounded)
Step-by-step explanation: