Slope = (4 - 2)/(-6 - 2)= 2/-8 = -1/4
y = mx + b
2 = -1/4(2) + b
2 = -1/2 + b
b = 5/2
equation
y = -1/4x + 5/2
4y = -x + 10
x + 4y = 10
answer
<span>A) x+4y=10</span>
Y = mx + b
y - b = mx
(y - b) / x = m
so its : m = (y - b) / x.....or m = (y/x) - (b/x)
Answer:
20°C
Step-by-step explanation:
Quantity if heat energy supplied is expressed as;
Q = mcΔt
m is the mass = 3kg
Δt is the temperature rise
Q = 5400J
c = 900 J/kg °C
Substitute
5400 = 3(90)Δt
5400 = 270Δt
Δt = 5400/270
Δt = 20°C
Hence the temperature rise is 20°C
10500-4500=6000
6000/250=24
So the answer is 24 months, or 2 years.