Answer:
Step-by-step explanation:
Given
Required
Determine the actual sales
Represent the actual sales with u
<em>Hence, the total sales can be expressed using y = 200 + x</em>
Demola is two years older than Deji and Tobi is half of Demola's age. The sum of their ages is 23. How old is Deji
1 answer:
You might be interested in
Answer:
y = - 3x - 3
Step-by-step explanation:
the equation of a linear function in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
To calculate m use the slope formula
m = (y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 2, 3) and (x₂, y₂ ) = (6, -21) ← 2 points from the table
m = =
= - 3
y = - 3x + b ← is the partial equation
To find b substitute any other point from the table into the partial equation
using (2, - 9), then
- 9 = - 6 + b ⇒ b = - 9 + 6 = - 3
y = - 3x - 3 ← linear relationship