Mixed Midterm Multiple Choice #1

The equation 10y - 12x = 480 represents the total amount the Jazz Band spent on supplies for a fundraiser. What is the x-intercept of the equation?

• -48

• -40

• 48

• 40

Given the following relation: {(3,2), (6,-2), (12, -10)}, which of the following is true?

• The relation is not a function.

• The relation is a function, but not linear.

• The relation is a linear function and its equation is y = -4/3x + 6

• The relation is a linear function and its equation is y = -4/3x - 14

Which linear function has the greatest rate of change?

• y = 2x - 4

• y = -2x + 6

• 4y - 12x = 4

• 2y = -x - 7

What is the equation of this line?

• y = (2/3)x - 3

• y = (3/2)x - 3

• y > (3/2)x - 3

• y < 2/3x - 3

The first term of an arithmetic sequence is 9 and the second term is -3. The explicit rule for this sequence can be written as which of the following?

• f(1) = 9

  f(n) = f(n-1) - 12

• f(n) = -12n + 21

• a₁ = 9

  a_n = a_n-1 - 3

• a_n = -12n + 9

The formula for the perimeter of a rectangle is P=2L+2W. If you wanted to solve for L, what would your steps be?

• Divide L by 2, then subtract 2W from P

• Subtract 2L from P, then divide by 2

• Subtract 2W from P, then divide by 2

• Factor out the 2, then divide by L + W

Which represents the system of equations that is graphed below?

• y = -x + 4

  y = 1/2x + 1

• y = x + 4

  y = x + 1

• y = -x + 1

  y = 2x + 4

• y = -x + 4

  y = 2x + 1

What is the range of the following function: {(2,6), (3,9), (4, 12)}

• {2, 3, 4}

• {6, 9, 12}

• {all real numbers}

• {natural numbers}

Given the following relation: {(1,3), (x,5), (2,4), (7, 9)} what value of x would result in this relation NOT being a function?

• 3

• 5

• 9

• 2

Which of the following statements is false about the real number system?

• 0 is a number.

• When you take the square root of any number, it is automatically irrational.

• 3.14 is a rational number.

• 100 is both natural and an integer.