{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

QUIZ #1 - MA 118 C. NELAN

# QUIZ #1 - MA 118 C. NELAN - MATTHEW ALONGI MA 118 Quiz 1...

This preview shows pages 1–2. Sign up to view the full content.

MATTHEW ALONGI, MA 118 Quiz 1 PROFESSOR NELAN .1) Simplify: 2 3 7 3 7 4 ) 7 ( ) 3 ( y x y x Answer: 1323x 26 y 27 2) Simplify: 5 4 4 5 3 ) ( 8 ) 2 ( v u v u Answer: 2v 13 u 8 3) Write 3 1 x as x to some power ( x p ) Answer: x -1/3 4) Find the equation for the line passing through the point (3, -5) with slope -3 in slope-intercept form. Answer: y= -3x + 4 5) Find the equation for the line passing through the points (1,2) and (3,12) in slope-intercept form. Answer: y = 5x-3 6) Find the equation for the vertical line passing through the point (-2, 4.5). Answer: Vertical means infinite slope or slope does not exist, so x = -2 7) Assume that the number of cars in a parking lot at any time is a linear function of time. At 7:00 am, there are 121 cars in the lot and at 10:00 am there are 142 cars in the lot. How many cars will be in the lot at midnight? Answer : 240 cars 8, 9) Assume the value of a car is a linear function of time. One year after purchase the car is worth \$12,700; three years after purchase the car is worth \$10,500. 8) Write the value of the car as a function of how old it is. 9) How much will the car be worth 8 years after purchase? #8 Answer: y = -1100x + 13,800 #9 Answer: \$5,000

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
10, 11) Find the domain (10) and range (11) of the function: f(x) =
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern