Answer:
A
Step-by-step explanation:
When a discriminant is positive it has two distinct roots. When a discriminant is negative it has no real roots. When a discriminant is zero it has two roots that are the same so that counts as one root.
Answer:
Option D : Undefined
Step-by-step explanation:
Given points (-5,8) and (-5,3) lies on a line.
Slope of a line is given by:
m = 

Anything divided by zero is undefined.
Therefore,
Option D is the correct answer.
Answer:
The length of the slide is 10 feet.
Step-by-step explanation:
To find the length of the slide you have to use the formula:
a^2 + b^2 = c^2 (^2 means squared)
In this case:
a= 6 and b=8 c= unknown
6 squared (6 times 6) is 36
8 squared (8 times 8) is 64
Add these two numbers to get:
36+64=100
6^2+8^2=100
However, the length of the slide in not 100 feet. In order to find the correct length you must find the square root of 100. Which is 10.
What number times itself equals 100? 10.
The length of the slide in 10 feet.
Answer:
40
Step-by-step explanation:
-1 × 5 = -5
-5 × 2 = -10
-10 × -4 = 40