The slope of a line in the standard (x,y) coordinate plane is 4. What|ACT Math exam questions with answers

The slope of a line in the standard (x,y) coordinate plane is 4. What is the slope of a line perpendicular to that line?

(A) 4

(B)

(D) -1

(E) -4

The Correct Answer

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Explanation

Which of the following lines has the same graph as the line 2x - y = 12?

（A）6x + 3y = 36 （B） 4x + 2y = 24 （C） 4x - 2y = 12 （D） 4x - 4y = 24 （E） -6x + 3y = -36

Correct Answer: E

How many 4-letter orderings, where no letters are repeated, can be made using the letters of the word BADGERS?

(A) 4 (B) 7 (C) 256 (D) 840 (E) 2,401

Correct Answer: D

For all x > 8, = ?

(F) (G) (H) (J) (K) 1

Correct Answer: K

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2At the end of each month, a credit card company uses the formula D = B (1 + r) + 10m² to calculate debt owed, where D is the cardholder's total debt; B is the amount charged to the card; r is the rate of interest; and m is the number of payments the cardholder has previously missed. If Daniel has charged $2,155 to his credit card with a 13% interest rate and has missed 2 payments, which value is closest to Daniel's total credit card debt? 3Mike sold 3 pounds of beef at his deli on Wednesday and 2 pounds of beef on Saturday. Which of the following ranges includes the total amount of beef, in pounds, Mike sold during these two days? 4If x and y are integers such that y > 12 and 2x + y = 19, which of the following is the solution set for x? 5 The equation of a circle in the standard (x,y) coordinate plane is given by the equation (x + 5)² + (y - 5)² = 5. What is the center of the circle? © 2020-2049 pinexam.com - All rights reserved, Contact UsContent posted by Pinexam users is dedicated to the public domain.