NC MATH 1 EOC PRACTICE TEST ONLINE

Problem 61 :

Which is an equation of a line that is parallel to line MN?

A. 2x - y = 3          B. x - 2y = 3

C. 8x + 4y = 4       D. 9x + 18y = -9

Solution

Problem 62 :

Solution

Problem 63 :

A long string with a balloon at the end was tied to the ground. After a breeze came up, the balloon was 55 feet to the right of where it was tied and 30 feet above the ground, as shown in the figure below. 

What is the slope of the line between the balloon and the point where it was tied?

Solution

Problem 64 :

The distance traveled by a marble on a flat table as it rolls in a straight line is determined by the formula:

Where

s = Distance traveled   u = Initial Velocity

t = Time elapsed   a = Acceleration

Which of the following shows the distance traveled formula solved for a?

Solution

Problem 65 :

A computer is purchased for $1,200 and depreciates at $140 per year. Which linear equation represents the value, V, of the computer at the end of t years?

A. V = 1,200 - 140t       B. V = 140t

C. 140t - 1,200             D. V = 140(1,200 - t)

Solution

Problem 66 :

Which equation is equivalent to 5x - 2(7x + 1) = 15x?

A. -9 - 2x = 14x         B. -9x + 1 = 14x

C. -9x - 2 = 14x        D. 12x - 1 = 14x

Solution

Problem 67 :

At a local grocery store, watermelons are sold for $4 each plus an additional $0.25 per pound. Write a function that describes the relationship between x, the number of pounds of a watermelon, and f(x), the total cost of the watermelon.

A. f(x) = 4.25x                 B. f(x) = 4 + 0.25x

C. f(x) = 4(0.25 + 1)        D. f(x) = 4x(0.25x + 4)

Solution

Problem 68 :

A group of 3 children and 2 adults pay a total of $120 to take a karate class. A group of 5 children and 1 adult take the same karate class for $95. What is the total cost for 1 child and 1 adult to take the karate class?

A. $60         B. $55        C. $51      D. $48

Solution

Problem 69 :

Find an equation for the line with y-intercept 3 that is perpendicular to the line 3y = 2x - 4. 

A. 2y = 6 - 3x          B. 2y = 3x + 6

C. 3y = 9 - 2x          D. 3y = 2x + 9

Solution

Problem 70 :

Which is the line parallel to the line y = 8x - 2?

A. y = 2x - 8            B. y = -1/8x + 3

C. y = 4 + 8x          D. 2y = 8x + 3

Solution