(w - 7)(w + 4)
w^2 - 7w + 4w - 28
w^2 - 3w - 28
Answer:
PD = 8
Step-by-step explanation:
PC x PD = PA x PB
3 x PD = 4 x (4 + 2)
3PD = 24
PD = 8
Answer:
1). Yes
2). Yes
3). No
Step-by-step explanation:
1). y = 3
We can rewrite this equation in the slope-intercept form as,
y = 0.x + 3
Here, slope = 0
y-intercept = 3
Therefore, it's a linear relation.
YES.
2). 2x - 5y = 10
5y = 2x - 10
y = 
Therefor, it's a linear function.
YES
3). y = x(x + 3)
y =x² + 3x
Since, this equation is a quadratic equation,
It's not a linear function.
NO
Answer:
x = 3
Step-by-step explanation:
the equation of a vertical line parallel to the y-axis is
x = c
where c is the value of the x-coordinate the line passes through
here the line passes through (3, 2 ) and (3, - 4 )
both points have an x-coordinate of 3, hence
equation of line is x = 3
Ordered pair is
<u>Step-by-step explanation:</u>
We have the following inequalities:
and
. In order to find ordered pair would be a solution on the graph .Let's solve both inequalities , and will take common solution from both of them !
and ,
which implies:
⇒
⇒
⇒ 
putting value of x in both inequalities we get,
and 
and 
and 
Hence at x =
and y =
above inequalities are satisfied. ∴ Ordered pair is