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3 years ago

Evaluate F(x)=-4x+7 when x is 1

Mathematics

1 answer:

oee [108]3 years ago

8 0

Answer:

f (1) = 11

Step-by-step explanation:

f(1) = 4(1) + 7

f(1)= 4+7

f(1)= 11

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Use the information given to enter an equation in standard form. Slope is 4/7 , and (5,8) is on the line.

aalyn [17]

8=4/7(7) + b
b=4
Y= 4/7 x + 4
[You might wanna check your answer, I might be wrong. Sorry if I’m wrong.]

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3 years ago

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belka [17]

Answer:

Y = 3x

Step-by-step explanation:

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3 years ago

1. What are the x and y-intercepts?

mel-nik [20]

Answer: B, (-3,0) and (0,2)

Step-by-step explanation:

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3 years ago

Two students are comparing scientific experiments to investigations. They came up with the following ideas. Student A: Testing p

irinina [24]

Answer:

Student A: Testing plant growth in different types of soils

Student B: Comparing the water level in a lake during different times of the year

Step-by-step explanation:

Student A because it requires a hypothesis

Student B because it requires a hypothesis Student

A because it can be done in natural settings

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6 0

3 years ago

Square ABCD is located on a coordinate plane. The coordinates for three of the vertices are listed below. ~A(2,7) ~C(8,1) ~D(2,1

Vladimir79 [104]

Answer:

B' (16, 14)

Step-by-step explanation:

Whenever we have a dilation with a scale factor b, we get the new point as:

Let original point be (x,y), then the dilation would make it (bx, by).

There is a diagonal that goes through AC and another through BD. The midpoint of both the diagonal is same. Midpoint formula is:

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Midpoint of AC:

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})\\=(\frac{2+8}{2},\frac{7+1}{2})\\=(5,4)$

Now let vertex B have coordinates (x,y). Midpoint of BD:

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})\\=(\frac{x+2}{2},\frac{y+1}{2})$

Equate this to the midpoint of AC:

(x+2)/2=5

x+2 = 10

x = 8

and

(y+1)/2=4

y+1=8

y = 7

Thus, B(8,7)

recalling dilation of scale factor 2 rule we said at the beginning, B' would be twice of each coordinate. Hence B' = (16,14)

7 0

3 years ago