Abeka Algebra 2 - 10th grade Test 6

Which of the following best describes the matrix [¹₀ ⁰₁]? a. augmented b. adjugate c. identity d. triangular

c. identity

Find the distance between the points (-2, 2) and (1, 6). (show your work) a. 5 b. √5 c. 25 d. √73

a. 5

What would the dimensions of the matrix be if a 2x4 matrix and a 4x2 matrix were multiplied? a. 4x4 b. 2x4 c. 2x2 d. 4x2

c. 2x2

Which of the following expressions is in standard form for complex numbers? a. 7-4i b. i²+5i c. √-5 d. 4i²

a. 7-4i

Find the midpoint between the points (-2, 2) and (1, 6). (show your work) a. (-1, -4) b. (-½, 4) c. (-½, 3) d. (1, 8)

b. (-½, 4)

Which of the following describes the domain of the function ƒ(x)=s-5/x+6? a. (-∞, ∞) b. (-∞, -6) and (-6, ∞) c. (-∞, 5) and (5, ∞) d. (-∞, -6) and (-6, ∞)

b. (-∞, -6) and (-6, ∞)

Simplify the expression 7-2*5+9+3 using order of operations. a. ³⁴/₃ b. 0 c. -4 d. 7

b. 0

Let x and y be inversely related. If y =3 when x =4, find y when x =6. (show your work) a. y = 1 b. y = 2 c. y=3 d. y = 4

b. y = 2

Read the information below and identify the objection function. Mrs. Drake is selling 38 skirts and 12 dresses. However, she has only enough space to display 42 of these. The expected profit of each skirt is $5 while the expected profit of each dress is $12. Use x to represent skirts and y to represent dresses. a. P =12x + 38y b. P = 12x + 5y c. P = 38x + 12y d. P = 5x + 12y

d. P = 5x + 12y

Identify the type of transformation for the aparabola ƒ(x)=x²-6. a. horizontal translation b. vertical compression c. vertical reflection d. vertical translation

d. vertical translation