Answer:c
Step-by-step explanation:
Answer:
Direct Variation
Step-by-step explanation:
Given: A car travels at a distance of km. The formula that relates to is
To find: kind of variation
Solution:
The formula that relates to is
Here, is a constant of proportionality.
Constant of proportionality is also called as constant of variation.
varies directly as .
Therefore, this is a direct variation.
The answer is 2x
3
+5x
2
−x−6
Using the distributive property, an equivalent expression would be 6-16y
Comment the correct answer.
X = 0 ; y = 10 ; 10 = a(0) + b(0) + c
c = 10
x=2 ; y = 15 ; 15 = a(4) + b(2) + 10 ; 5 = 4a+2b
x=4 ; y=18 ; 18 = a(16) + b(4) + 10 ; 8 = 16a + 4b
2(5) = (4a+2b)2
-
<u> 8 = 16a + 4b
</u> 2 = -8a
a = -0.25
b = 2
y = (1/4)x^2 + 2x + 10 ; 4y = x^2 + 8x + 40