Answer:
<em>First option: </em>
Step-by-step explanation:
Given the point-slope equation
, you need to solve for
, because you are looking for the equation of the line in slope-intercept form:

Being
the slope of that line, and
the intersection of the line with the y-axis.
Then:
Apply Distributive property:

Subtract 7 from both sides:

Rewrite the equation:
(The linear function of the First option)
Answer:

Explanation:
You must find the solution of the system using the substitution method.
System:

Substitute x+2 for y:

Pass all the terms to one side:

Use the quadratic formula to solve:


Use y = x + 2 to find the value of y:

Answer: The extra-size chart
- 5 basketball
- 3 footballs
- 5 running
- 3 jogging
- 4 jumping jacks
- 5 sit up
Step-by-step explanation: