C because a negative would turn into a positive.
Kayla's opportunity cost for attending the movie is $9.50
Tara's total expense for watching the movie amounts to $50.50
Answer:
To find the number of genuine solutions for a system of equations consisting of a linear equation and a quadratic equation
1) With two variables, say x and y, rearrange the linear equation to express y, then substitute this y in the quadratic equation
After that, simplify the resulting equation and determine the number of real roots utilizing the quadratic formula,
for equations of the type 0 = a·x² - b·x + c.
When b² exceeds 4·a·c, two real solutions emerge; if b² equals 4·a·c, there will be a single solution.
Step-by-step explanation:
Answer:
Comprehensive explanation:
Let's denote
x -----> the number of days
and
y ----> the remaining minutes for Yuson
We know that
The linear equation in slope-intercept form can be represented as

here
m indicates the slope
b represents the y-coordinate of the y-intercept (starting value)
In this scenario, we have
The slope is defined as
----> negative, as it indicates a decreasing function
----> initial value
substituting the values
