A recipe requires 2.5 teaspoons of sugar to make a candy bar. Which equation shows the number of teaspoons of sugar, y, needed to make x candy bars?
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2.5x-y=0

Step-by-step explanation:

You will have to understand this question before solving

According to the question 2.5 teaspoon of sugar is required for making one candy

Then y teaspoon of sugar is required to make y candy

Let's start

2.5 sugar=1 candy

y sugar=x candy

Let's cross multiply

y=2.5×x

y=2.5x

Which can also be written as

2.5x-y=0

Therefore the final answer is 2.5x-y=0

Step-by-step explanation:

Number of teaspoons of sugar, y = 2.5 × x

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4