Exam 7 Flashcards
Lesson 105
1
Q
The discriminant of ax^2 + bx + c is given by the formula _____.
A
b^2 - 4ac
2
Q
The shape associated with the graph of a quadratic equation is called a(n) _______.
A
parabola.
3
Q
_____ is an example of conjunction.
A
2 < x + 5 < 7.
4
Q
The distance formula for (x_1, y_1) and (x_2, y_2) is ______.
A
D = √[(x_2 - x_1)^2 + (y_1 - y_2)^2]
5
Q
h(x) = 1 - 5x
then h(-3) = _____.
A
16.
6
Q
A function is defined as a set or ordered pairs in which __________.
A
no two pairs have the same first element and different second elements.
7
Q
The slope formula for the line through (x_1, y_1) and (x_2, y_2) is _____.
A
m = y_2 - y_1 / x_2 - x_1
8
Q
A
