Which equation is correct for ∆FON?
1 answer:
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Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
To calculate m use the slope formula
m = ( y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (3, 6) and (x₂, y₂ ) = (8, 4)
m = = -
, hence
y = - x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (8, 4), then
4 = - + c ⇒ c = 4 +
=
y = - x +
← equation of line
Answer:
a(+
) = = -13
Step-by-step explanation:
Given that a = -1, b=2 and c= -3
find the value of a(+
)
Just substitute the values given for each variable
a(+
) = (-1)(
+
) ; do the exponents first
a(+
) = (-1)(4+9)=(-1)(13) ; now add inside the parenthesis;
a(+
) = -13 ; and multiply by -1