A(-2,-9) and B(-5,-8)
The equation form: y = mx + b. Calculate m, the slope:
m = (y₂-y₁) ÷ (x₂-x₁)→ m = [(-8) - (-9)] ÷ [(-5) - (-2)] →m = (-8+9)÷(-3) = -3
y = -3.x + b. To calculate b, plugin any of A or B coordinates, say A(-2,-9)
-9 = -3(-2)+b → b = -3
Finally te equation y = -3x -3
Answer:
Angles 1 & 4 are alternate interior angles.
Answer:
A. False - The slope of line J is 20.
B. False - The slope of line K is 12.5.
C. True - Since the slope is 20.
D. False - Kayla earns 12.50/hour.
E. True - Since Kayla earns less per hour than Julie, she has to work more hours to earn the same amount.
Answer:
Step-by-step explanation:
<u>Total frequencies:</u>
Median group is the containing the middle - 25th and 26th frequencies. This is the 11-15 interval.
<u>Estimated median formula:</u>
- Estimated Median = L + ((n/2) − B)/G* w, where
- L - lower class boundary of the group containing the median = 10.5
- n - total number of values = 50
- B - cumulative frequency of the groups before the median group = 6 + 15 = 21
- G - frequency of the median group = 20
- w - group width = 5
<u>Substitute values and work out the number:</u>
- Estimated Median = 10.5 + (50/2 - 21)/20*5 = 11.5