Please help Which relation is a function?

Mathematics

1 answer:

wlad13 [49]3 years ago

8 0

Answer:

the top right corner is a function because they don't cross when u draw a straight ling down in every slot so to know just draw a line through your graph to find out if it is a function

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Evaluate f(9) given f(x)=-x+7

Nina [5.8K]

Answer:

f(9)=-2

Step-by-step explanation:

f(9)= -9+7= -2

5 0

3 years ago

2(x+4)= -5x+1 Some one please solve

NeX [460]

Let's solve your equation step-by-step.

2(x+4)=−5x+1

Step 1: Simplify both sides of the equation.

2(x+4)=−5x+1

(2)(x)+(2)(4)=−5x+1(Distribute)

2x+8=−5x+1

Step 2: Add 5x to both sides.

2x+8+5x=−5x+1+5x

7x+8=1

Step 3: Subtract 8 from both sides.

7x+8−8=1−8

7x=−7

Step 4: Divide both sides by 7.

−7

x=−1

Answer:

x=−1

7 0

3 years ago

Laura says that the distance between (4,-2) and (4,-7) in the coordinate plane is equal to |-2-(-7)|units Ryan say that the dist

son4ous [18]

Answer:

Both are correct.

Step-by-step explanation:

In the point (4,-2) and (4,-7), the x-coordinates are same. So, the distance between these points is the absolute difference between the y-coordinates of these points.

$Distance=|-2-(-7)|=5\text{ units}$

So, Laura is correct.

In the point (2,3) and (-9,3), the y-coordinates are same. So, the distance between these points is the absolute difference between the x-coordinates of these points.

$Distance=|2-(-9)|=|2+9|=11\text{ units}$