The value of the y-intercept for the graph of 4x - 5y=40 is?

1 answer:

3 0

We need to get our equation to this form:
y = mx + b
that is the line equation with m slope and b y-axis intercept. So lets modify our equation:
<span>4x - 5y = 40
5y = 4x - 40
y = (4/5)x - 8
therefore the y-intercept is -8</span>

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F(x)=-x^2+1 find f(-3)

Serjik [45]

Answer:

-8

Step-by-step explanation:

All you have to do to solve this equation is plug "-3" into the equation where you see "x"

$f(x)=-x^2+1\\f(-3)=-(-3)^2+1\\f(-3)=-(9)+1\\f(-3)=-9+1\\f(-3)=-8$

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