Answer:

Step-by-step explanation:
Slope-intercept form of an equation is written as
, where
is the slope and
is the y-intercept.
The slope of a line that passes through the points
and
is
. Using the coordinates
and
as given in the problem, we have slope of this line to be:
.
Now using this slope we've found and any point the line passes through, we can find the y-intercept of this equation:

Therefore, the equation of this line in slope-intercept form is
.
Answer:
a = - 3
Step-by-step explanation:
The equation has common factors x(x + 3) on both sides
For the 2 sides of the equation to be equal, then the factor
(x + a) = (x - 3) and by comparison
a = - 3
Answer:
3 3/5
Step-by-step explanation:
Raphel bought 2 1/2 pounds of chicken for $9
Therefore the cost per round of the chicken can be calculated as follows
9÷5/2
= 9×2/5
= 18/5
= 3 3/5