Answer:
y = -2x +6
Step-by-step explanation:
Need to find b, we have 2 points (0,b), (-1,-4) and a slope m = -2
m = (y2 - y1) / (x2 -x1)
-2 = (-4 - b) / (-1 - 0)
Solve for b
-2(-1 - 0) = -4 - b
2 = -4 - b
2 + 4 = b
6 = b
b = 6
Answer:
The (x,y) point of the vertex is usually labelled as:
Vertex = (h, k)
h = -b / 2a
k = ah^2 + bh + c
f(x) = -3x^2 + 12x -5
a = -3 b=12 c=-5
h = -12 / -6 therefore h = 2
k = -3*2^2 + 12*2 -5
k = -12 + 24 -5 therefore k = 7
Vertex (2, 7)
Source: http://www.1728.org/quadr3.htm
Step-by-step explanation:
After solving
we get 
Step-by-step explanation:
We need to solve the following expression:

Solving the above expression we need to find the LCM of denominators: 2,8,10
The LCM of 2,8,10 is 40

So, after solving
we get 
Keywords: Rational Numbers
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Answer:
a) t-4 = 3 (i - 1/4h) = h = 3i - 3 3/4h
= t = -0.75
= h = 4
b) 3.30am = 1 inch.
Step-by-step explanation:
a) formula for point slope form = y - y1 = m(x-x1)
a) t-4 = 3(i - 1/4h) converts to t-4 = 3i - 3/4h = t = 3i- 3 3/4
x = - 0.75 y = 4 = t= -0.75 and h = 4
b) 12.15am = 4 inches
1.15am = 3.25 inches
2.15am = 2.5 inches
3.15am = 1.75inches
3.30 = 1 inches
3.15 + 15mins = 1 inch