Its simple this is your answer
10.7
Real numbers help us to count and to measure out quantities of different items. So for instance when you ask your partner how many slices of toast he or she wants for breakfast, you are using real numbers when they reply with their answer.
<span>y = 5x - 9 a straight line
If y = 0 then 5x-9 = 0 0r x = 9/5
If x = 0, then y = -9
The straight line can be drawn from (9/5,0) to (0,-9) and extended to infinity both ways.
</span>
Answer:
12
Step-by-step explanation:
The mean is the average. Which is all of the numbers added together divided by the amount of numbers.
11+8+18+9+15+11=72
72÷6=12
Answer:
(- 3, - 7 )
Step-by-step explanation:
Given the 2 equations
y = 4x + 5 → (1)
y = x - 4 → (2)
Substitute y = 4x + 5 into (2)
4x + 5 = x - 4 ( subtract x from both sides )
3x + 5 = - 4 ( subtract 5 from both sides )
3x = - 9 ( divide both sides by 3 )
x = - 3
Substitute x = - 3 into either of the 2 equations and evaluate for y
Substituting into (2)
y = x - 4 = - 3 - 4 = - 7
solution is (- 3, - 7 )
