Answer:
y= -2x
Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Given that the slope is -2, m= -2.
subst. m= -2 into the equation:
y= -2x +c
To find the value of c, substitute a coordinate.
When x= -4, y=8,
8= -2(-4) +c
8= 8 +c (expand)
c= 8-8 (-8 on both sides)
c=0 (simplify)
Thus, the equation of the line is y= -2x.
4/9 times 4/9 is 16/81.
To make 4/9 of a recipe, 16/81 cups of granola needed.
So, values of x are: 
Step-by-step explanation:
We need to find the square root of 5x^2 = 300
Writing in mathematical form:

Divide both sides by 5


Taking square root on both sides






So, values of x are: 
Keywords: Square root
Learn more about square root at:
#learnwithBrainly
I think it's 6.216 x 10^8 if this is about standard notation
Answer:
Vanellope from Wreck-It-Ralph (Disney.)
Step-by-step explanation: