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3 years ago

Consider the function f(x)=-2x+5 what is f(5) enter your answer in the box

Mathematics

1 answer:

Oliga [24]3 years ago

8 0

The value of f(5) is $f(5)=-5$

Step-by-step explanation:

The function is $f(x)=-2x+5$

To find $f(5)$ substitute $x=5$ in $f(x)=-2x+5$

$f(5)=-2(5)+5$

Multiplying the terms, we get,

$f(5)=-10+5$

Adding the terms, we get,

$f(5)=-5$

Thus, the value of $f(5)$ is $f(5)=-5$

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Graph the linear equation. Find three

belka [17]

Answer:

Part 1) The graph in the attached figure

Part 2) Three points that solve the equation could be (-18,0),(0,4.5) and (-2,4)

Step-by-step explanation:

we know that

To graph a line we need to plot two points

If a point solve the linear equation, then the point is a solution of the linear equation

step 1

Find the first point that solve the equation

Find the x-intercept

The x-intercept is the value of x when the value of y is equal to zero

For y=0

$x - 4(0) =-18$

$x=-18$

The x-intercept is the point (-18,0)

step 2

Find the second point that solve the equation

Find the y-intercept

The y-intercept is the value of y when the value of x is equal to zero

For x=0

$0 - 4y =-18$

$-4y=-18$

$y=4.5$

The y-intercept is the point (0,4.5)

step 3

With the intercepts graph the line

Plot the intercepts and join the points to graph the line

using a graphing tool

see the attached figure

step 4

Find the third point that solve the equation

Assume a value for x and then solve for y

I assume x=-2

substitute in the linear equation and solve for y

$-2 - 4y =-18$

$-4y=-18+2$

$-4y=-16$

$y=4$

The third point is the point (-2,4)

7 0

3 years ago

Which number is the additive inverse of -4 1/4

vovangra [49]

The additive inverse of a number is the opposite number......for this problem, it is a number, that when added to -4 1/4 = 0.

so the additive inverse of -4 1/4 = 4 1/4

8 0

3 years ago

Read 2 more answers

Which function has a constant additive rate of change of -1/4?

VladimirAG [237]

Answer:

The first graph (in other words A)

Step-by-step explanation:

bc it is going down 1/4 at a constant rate!!!

Hope This Helps!!!

7 0

3 years ago

The product of 5 and a number x is greater than 20 an inequality is ? the solution is?

igor_vitrenko [27]

Answer:5*x>20

Step-by-step explanation: i think it is askinng to find x by comparing grater than less than

7 0

3 years ago

The areas of two similar rectangles are 180 ft.² and 320 ft.². What scale factor applied to the smaller rectangle will give the

grigory [225]

The ratio of areas is the square of the scale factor, so that factor is
√(320/180) = 4/3

8 0

3 years ago