1)
Given two points: (x₁,y₁) and (x₂,y₂) the slope of the line passing through these points would be:
m=(y₂-y₁)/(x₂-x₁)
Data:
We have two points, (-3,4) and (2,-1), therefore, the slope of the line passing through these points will be:
m=(-1-4) /(2+3)=-5/5=-1
Answer: The slope would be -1.
2)
slope-intercept form of a line:
y=mx+b
m=slope
b=y-intercept
Therefore:
m=2
b=y-intercept=-4
The line would be: y=2x-4
answer: the equation of this line would be: y=2x-4
Answer:
Mean
Step-by-step explanation:
Mean is the average of all results.
Step 1 : Identify the formula of calculating mean
Mean = <u>Sum of all data</u>
Number of data
Step 2 : Substitute the values in the formula
Mean = <u>10 + 15 + 25 +75 + 75 + 77 + 80 +83 + 85 + 90</u>
10
Mean = <u>615</u>
10
Mean = 61.5 marks
!!
1. Divide both sides by 3
x - 2 > -1
2. Add 2 to both sides
x > -1 + 2
3. Simplify -1+2 to 1
x > 1
The answer is x > 1.
Answer:
= - 2/7
Alternate form: - 0.285714
Step-by-step explanation:
1- Substitute f ( x ) = 0
Reorder
f ( ) = x 2 - 16 - 4
2- Collect like terms
0 = 2 - 16 - 4
3- Move the variable to the left
0 = - 14 - 4
4- Divide both sides
14 = - 4
If he sells about 8 cars he will get above 1500