Review on Linear Equations, Function Notation, and Slope
If 8x + 3 = 5x +12, then x = ?
a) -5
b) -3
c) 9/13
d) 3
e) 5
What is 3?
The perimeter of a square is 36 inches. What is its area, in square inches?
a) 9
b) 16
c) 18
d) 64
e) 81
What is E (9)?
Which of the following is the slope of a line parallel to the line y = 2x - 3 ?
a) -1/2
b) 1/2
c) -2
d) 2
e) None of these
What is the slope of 2
A rectangular parking lot that is 5 ft longer than it is wide has an area of 104 square feet. How many feet long is the parking lot?
a) 4
b) 8
c) 13
d) 26
e) 52
What is "c" ?
If f(x) = 3x^(2) - 2, then f(x+h) = ?
What is 3x^(2) + 6hx + 3h^(2) - 2
What is the value of y in the solution to the system of equations below?
2x-3y = 20
x +5y = -3
a) -7
b) -2
c) 2
d) 7
e) 8
What is "b"?
Multiplying the second equation by -2
and solving algebraically, we obtain y = -2 .
Let a function of 2 variables be defined by
f(x,y) = xy - (x+y). What is the value of the f(-2,3)?
What is -7?
The value of "h" that will make (h/4) - 3 = 2/3, a true statement lies between which of the following numbers?
a) 0 < h < 1
b) 9 < h < 10
c) 10 < h < 11
d) 14 < h < 15
e) 17 < h < 18