Answer:
negative
Step-by-step explanation:
Let,
x1 = 0
x2 = 1
y1 = 50
y2 = 44
Formula : -
Slope = ( y2 - y1 ) / ( x2 - x1 )
Slope
= ( 44 - 50 ) / ( 1 - 0 )
= - 6 / 1
= - 6
- 6 is a negative number.
So, the slope is negative.
Answer:
1. Correct
2. Incorrect
Step-by-step explanation:
( - 1 + 1 ) / - 1
= 0 / - 1
= 0
- 1 / 1 = - 1
Answer:
138
Step-by-step explanation:
f(x)= 18x + 12
Let x = 7
f(7) = 18*7 +12
= 126+12
= 138
Answer:
6,251
Step-by-step explanation:
First you have to multiply 65 by 7 you will get 455
Then you have to multiply 144.9 by 40 you will get 5,796
At last add the two values:
5,796+455=6,251
For this case we have the following quadratic equation:

This is equivalent to:

Where:

The discriminant is given by:

Substituting the values we have:

The discriminant is zero, so the equation has two equal real roots.
Answer:
The equation has two equal real roots.