Answer:
yes, y varies directly with x.
y=4x is an equation of the Direct Variation
Step-by-step explanation:
x y
0 0
1 4
2 8
3 12
From the above data:
we can say that y varies directly with x.
Direct variation states that if y is expressed as the product of some constant number k and x.
i.e y=kx
Now, let any points from above data x= 2 and y= 8 to calculate the value of k,
8=2k
⇒
Therefore, the equation for the direct variation is, y=4x
Answer:
D, B and E
Step-by-step explanation:
To find the discount we write it as
Discount=15% of $249
We can write the above as
1)15/100×249(E)
OR
2)0.15×249 (B)
OR
3)3/20×100 (D)
Pythagorean theorem: a² + b² = c²
to find out if these numbers make a triangle, you must put them into the pythagorean theorem
7² + 8² = 15²
49 + 64 =/= 225
so no, these numbers do not make a triangle. hope this helped! ♥
3.105 x 10 to the 7 power because you move right 7 times