Answer:
y = 15 hour - 3 hours/day x days
y = 15 - 3x
y-intercept = 15 - 3(0)= 15 which is the amount of volunteer hours she must complete at day 0.
0 = 15 - 3x
3x = 15
x = 5 (Number of days she would have to volunteer)
Equation: y = 15- 3x
Step-by-step explanation:
Using slope intercept form, The number of days that the Rebecca should volunteer is 5 days.
The "equation of the straight line is y = mx +c this form is called slope intercept form".
According to the question,
Rebecca must complete 15 hours of volunteer work. She does 3 hours each day.
The linear equation is in slope intercept form is y = mx + c, where 'm' is the slope straight line and 'c' is y-intercept.
y = 15 hours - 3 hours/day x days
y = 15 - 3x →(1)
To find y-intercept put x=0 in equation (1) we have,
y = 15 - 3(0)
= 15
y = 15 which is the amount of volunteer hours Rebecca must complete at day 0.
0 = 15 - 3x
3x = 15
x = 5 [Number of days Rebecca would have to volunteer]
Hence, using slope intercept form, The number of days that the Rebecca should volunteer is 5 days.
Learn more about slope intercept form here
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