Mathematics, 11.10.2019 06:00 Teenabrewer28

Worth 10 points.

which function has the greatest y-intercept?

Worth 10 points. which function has the greatest y-intercept?

Answers: 2

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Answer from: Izzyfizzy

The y intercept is the value of y when x=0, it is represented by the letter b in y=mx+b
#1: b=0
#2: b=4, when x=0, y=4
#3: you have to work out b in this one by first writing the equation in point-slope form: y+4=2(x-1), when x=0, y=-6, so b=-6
#4: from the graph you can see the line cross the y axis at (0,5), so b=5

#4 has the largest y intercept.

Answer from: xTrippyBeach4201x

The y-intercept of a function is the value when x = 0
The first choice has a y-intercept of 0.
The 2nd choice has a y-intercept of 4.
The 3rd choice has a y-intercept of -6 b = y - mx = -4 -2(1) = -6
The 4th choice has a y-intercept of 5 assuming the scale is by 1.

Therefore the 4th choice has the greatest y-intercept.

Answer from: Quest

starting with:

5 + x - 12 = 2x - 7

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)

5 - 12 = x - 7 (combine and cancel x's from both sides)

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)

0 = x (add numbers together on both sides)

so in order for the equation to be true, x must be 0.

trying x = -0.5

5 + x - 12 = 2x - 7 (original equation)

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)

5 + -0.5 - 12 = -1 - 7 (did multiplication)

-7.5 = -8 (did addition on both sides)

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.

trying x = 0

5 + x - 12 = 2x - 7 (original equation)

5 + 0 - 12 = 2(0) - 7 (plug in value of x)

5 + 0 - 12 = 0 - 7 (did multiplication)

-7 = -7 (did addition on both sides)

since -7 equals -7, that demonstrates that the value of 0 for x is correct.

trying x = 1

5 + x - 12 = 2x - 7 (original equation)

5 + 1 - 12 = 2(1) - 7 (plug in value of x)

5 + 1 - 12 = 2 - 7 (did multiplication)

-6 = -5 (did addition on both sides)

since -6 is obviously not equal to -5, the value of 1 for x is wrong.

Answer from: Quest

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.

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Worth 10 points.

which function has the greatest y-intercept?
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