Answer:
k = - 4
Step-by-step explanation:
The equation that represents direct proportion is
y = kx ← k is the constant of proportion
To find k use any ordered pair from the table.
Using (2, - 8 ) , then
- 8 = 2k ( divide both sides by 2 )
k = - 4
Answer:
1st one is 11.2. The 2nd one is 24.
Step-by-step explanation:
Answer:
It will have infinitely many solutions depending upon value of y.
For eg:
<u>Put y=10,</u>
2.5x+8.5×10=90
2.5x=5
x=2
<u>For y=0 </u>
x=90/2.5=36
and so on
You need a system of linear equations to get a single solution for x
sum of angle of straight line is 180°. So, x+90°+25°=180°,. x+115°=180°.,. x=180°-115°, X=65°. so, the second option is correct 65°
