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cupoosta [38]
3 years ago
12

If the function graphed is f(x), find f(1). A) -4 B) -1/4 C) 0 D) 4

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
8 0

Answer:

The answer is A) -4

Step-by-step explanation:

LiRa [457]3 years ago
7 0

Answer:

f(1)=-4

Step-by-step explanation:

For finding out f(1), we have to find the value of y coordinate of the point where its x coordinate is 1.

From the given graph, the point (1,-4) lies on the graph and has x coordinate as 1.

Drawing a vertical line x=1, it meets the graph at (1,-4)

Therefore, f(1)=-4

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For what values of the variables are the following expressions defined? 5y+2
babymother [125]

Answer:

all possible y values

Step-by-step explanation:

5y + 2 is defined for all values of y.

3 0
3 years ago
Read 2 more answers
Vince has a rectangular rug in his room with an area of 10 ft the length of the rug is 18 inches longer than the width what coul
aev [14]

The length of the rug is 4 ft.

The width of the rug is 2.5 ft.

Explanation:

The area of the rug is 10 ft.

The length of the rug be l.

Let us convert the inches to feet.

Thus, 18 inches =  1.5 ft

Thus, the length of the rug is l=1.5+w

Let the width of the rug be w.

Substituting these values in the formula of area of the rectangle, we get,

A=length\times width

10=(1.5+w)(w)\\10=1.5w+w^2\\w^2+1.5w-10=0

Solving the expression using the quadratic formula,

$w=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Substituting the values, we have,

$w=\frac{-15 \pm \sqrt{15^{2}-4 \cdot 10(-100)}}{2 \cdot 10}\\

$w=\frac{-15 \pm \sqrt{4225}}{20}$

$w=\frac{-15 \pm 65}{2 0}$

Thus,

w=\frac{-15 + 65}{2 0}\\w=\frac{50}{20} \\w=2.5  and   w=\frac{-15 - 65}{2 0}\\w=\frac{-80}{20} \\w=-4

Since, the value of w cannot be negative, the value of w is 2.5ft

Thus, the width of the rug is 2.5ft

Substituting w=2.5 in l=1.5+w, we get,

l=1.5+2.5\\l=4

Thus, the length of the rug is 4 ft.

4 0
3 years ago
Johnny invests $8000 in a bank account that obtains a simple interest rate of 4% per year.
horsena [70]

Answer:

Write full question??what should we find in that question

3 0
3 years ago
Calculate the future value of $7,000 earning 6% interest compounded quarterly for 7 years. (Round your answer to two decimal pla
qwelly [4]

Use the compound interest formula.

Let A = the ending amount

Let P = the principal

Let r = the interest rate

Let n = the amount compounded a year

Let t = time

A = P(1 + r/n) ^(n/t)

Substitute your numbers in

A = $7,000(1 + 0.06/4)^(4/7)

Solve for A

A = $7,059.81

7 0
3 years ago
Identify whether the problem is a percent increase or a percent decrease. Your $1000 investment earned 5% interest.
wolverine [178]

Answer:

Precent Increase

Step-by-step explanation:

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