Form 10: Real-World Context - Identifying Initial Value (Y-intercept)
Determine the initial value or starting point as the y-intercept in real-world scenarios. Connect constant values in word problems to graphical intercepts.
Questions
-
MultiChoice
In y = 15x + 20 (taxi fare where x is hours), what is the initial value (y-intercept)?
-
MultiChoice
A savings account starts with $100 and gains $50 each month. What is the y-intercept?
-
MultiChoice
A candle is 30 cm tall before being lit and burns at 2.5 cm/hr. What is the y-intercept?
-
MultiChoice
A water tank starts with 12,000 gallons and loses 500 gal/min. What is the initial value?
-
MultiChoice
A gym charges $40 sign-up fee and $12/month. What is the y-intercept of the cost model?
-
MultiChoice
Outside temperature starts at 50 degrees F and drops 3 deg/hr. What is the initial value?
-
MultiChoice
A seedling is 5 inches tall at week 0 and grows 0.5 in/week. What is the y-intercept?
-
MultiChoice
A repair service charges $25 diagnostic fee plus $8 per 15 mins. What is the initial value?
-
MultiChoice
A full phone battery (100 percent) decreases 15 percent per hour. What is the y-intercept?
-
MultiChoice
A car starts at distance 0 miles and travels 60 mph. What is the initial value b?
-
MultiChoice
A catering service charges $150 fixed delivery plus $25 per plate. What is the y-intercept?
-
MultiChoice
An elevation of a hiker starts at 2,500 feet and decreases 200 ft/hr. What is the initial value?