Find the additive inverse of each rational number. 1.- 1/2 2. 0.25 3. 9/10 4. -0.4
1 answer:
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Answer:
y = x - 2
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 )
Calculate m using the slope formula
m =
with (x₁, y₁ = x- intercept (10, 0) and (x₂, y₂ ) = y- intercept (0, - 2)
m = =
=
The y- intercept c = - 2
y = x - 2 ← equation of line
Answer:
Choice B: .
Step-by-step explanation:
For a parabola with vertex , the vertex form equation of that parabola in would be:
.
In this question, the vertex is , such that
and
. There would exist a constant
such that the equation of this parabola would be:
.
The next step is to find the value of the constant .
Given that this parabola includes the point ,
and
would need to satisfy the equation of this parabola,
.
Substitute these two values into the equation for this parabola:
.
Solve this equation for :
.
.
Hence, the equation of this parabola would be:
.