Answer:
D = 0
Step-by-step explanation:
Given
x-intercept = -3
Required
What does the discriminant represent?
The discriminant of a quadratic function can take any 3 values; these are as follows;
- When D > 0
- When D < 0
- When D = 0
Which translates to
- signifies that two different real roots exist
- signifies that only complex roots exist
- signifies that the two identical real roots exist
The question says that x-intercept = -3 is the only value;
This means that: x = -3 or x = -3
Analyzing the roots
- 3 and -3 are identical
- -3 and -3 are real
This means they satisfy condition number 3;
Hence, D = 0
60%
If you take the 30% and divide from the 50% you get .6 multiply that by a 100 you get 60.
30/50=.60
.60x100=60
60%
Answer:
1. y = -2x + 5
2. y = 3/5x + 5
3. y = -4/5x - 4
4. y = - 1
5. yes
6. yes
7. yes
8. no
Step-by-step explanation:
1. (4,-3) parallel to y= -2x
-3 = -2(4)+b
b=5
2. (-5,2) parallel to y = 3/5x
2= 3/5(-5)+b
b=5
3. (-5,0) -4/5x
0 = -4/5(-5)+b
b = -4
4. (-4,-1)
y= -1
5. yes
6. yes
7. yes
8. no
- Same slope = parallel ex. y = -5x +7, y = -5x +12
- opposite reciprocal = perpendicular ex. y = -5x +7, y = 1/5x + 12
- to find "b" with slope and point
(x,y) y = mx + b
plug in the y value and x value in the eqaution and m=slope, solve for b
Answer:
Step-by-step explanation:
Alright, lets get started.
The given equation is :
If we divide the equation with -2 in both sides
Subtract 3 in both sides
So, the first step of simplifying equation is divide equation with -2. : Answer
Hope it will help :)
