All categories

3 years ago

What is the initial value of y=-2x-5

1 answer:

6 0

This problem can be solved easily. The equation states that y is a function of x. Since this is the case, then we can get the initial value of the function when x = 0. Therefore by substitution:

y = - 2 x -5

y = - 2 (0) – 5

y = -5 (ANSWER)

You might be interested in

Please find the value of x

Natasha_Volkova [10]

Step-by-step explanation:

fistly you will do

X+130°+75°+90°=360°

X+295=360

X=65°

6 0

3 years ago

Read 2 more answers

Mr. Boudreau completed a 5K marathon. ⅔ of the distance, Mr. Boudreau completed on foot. Of the time he spent on foot, ¾ of the

Salsk061 [2.6K]

Jjjhj the the the the the the the the the the the the the the the the the the the the the the the the the

3 0

3 years ago

tina solved a quadratic equation and found the solution to be -3/2 and 6 which of the following is equivalent to the quadratic e

Bond [772]

Answer:

$x^2-\dfrac{9}{2}x-9=0$

Step-by-step explanation:

The solutions of a quadratic equation are :

x = -3/2 and x = 6

or we can write it as :

$x+\dfrac{3}{2}=0\ and\ x-6=0\\\\(x+\dfrac{3}{2})(x-6)=0$

Multiplying both values,

$(x+\dfrac{3}{2})(x-6)=0\\\\x^2-6x+\dfrac{3}{2}x-9=0\\\\x^2-\dfrac{9}{2}x-9=0$

Hence, the required quadratic equation is $x^2-\dfrac{9}{2}x-9=0$ .

7 0

3 years ago

Katie owns a pretzel stand. Her profit, in dollars, is given by the function , where is the number of pretzels sold. What is the

olga nikolaevna [1]

Using the vertex of the quadratic equation, it is found that the maximum profit she can earn is of $106.

<h3>What is the vertex of a quadratic equation?</h3>

A quadratic equation is modeled by:

$y = ax^2 + bx + c$

The vertex is given by:

$(x_v, y_v)$

In which:

$x_v = -\frac{b}{2a}$

$y_v = -\frac{b^2 - 4ac}{4a}$

Considering the coefficient a, we have that:

If a < 0, the vertex is a maximum point.

If a > 0, the vertex is a minimum point.

In this problem, her profit is modeled by:

$P(x) = -x^2 + 14x + 57$

Which is a quadratic equation with coefficients a = -1, b = 14, c = 57, hence, her maximum profit in dollars is given by:

$y_v = -\frac{14^2 - 4(-1)(57)}{4(-1)} = 106$

More can be learned about the vertex of a quadratic equation at brainly.com/question/24737967

8 0

2 years ago

A woman put $580 into a savings account for three years. The rate of interest on the account was 6.5%. How much was the interest

GaryK [48]

Answer:

$113.1

Step-by-step explanation:

which is just 6.5% of 580 times 3

5 0

4 years ago