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3 years ago

12

Answer the problem below

1 answer:

Makovka662 [10]3 years ago

6 0

The equation would be:

y = -5/4x + 5

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You have investigated graphs of exponential relations of the form y = br for b > 0. Explain why graphs of this form remain ab

lisabon 2012 [21]

Answer:

When you substitute 0 for the exponent x, the expression simplifies to a times 1, which is just a. This is because any number to the 0 power equals 1. Since the initial value is the value of the function for an input of 0, the initial value for any function of this form will always be the value of a

Step-by-step explanation:

Hopefully this helped, if not HMU and I will try to get you a better answer! :)

4 0

3 years ago

Choose the correct vertex of the function f(x) = x2 - X + 2.

8_murik_8 [283]

Answer:

The vertex of the function is $(\frac{1}{2}, \frac{7}{4})$

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

$f(x) = ax^{2} + bx + c$

It's vertex is the point $(x_{v}, y_{v})$

In which

$x_{v} = -\frac{b}{2a}$

$y_{v} = -\frac{\Delta}{4a}$

Where

$\Delta = b^2-4ac$

If a<0, the vertex is a maximum point, that is, the maximum value happens at $x_{v}$ , and it's value is $y_{v}$ .

f(x) = x² - X + 2.

Quadratic equation with $a = 1, b = -1, c = 2$

So

$\Delta = b^2-4ac = (-1)^2 - 4(1)(2) = 1 - 8 = -7$

$x_{v} = -\frac{(-1)}{2} = \frac{1}{2}$

$y_{v} = -\frac{-7}{4} = \frac{7}{4}$

The vertex of the function is $(\frac{1}{2}, \frac{7}{4})$

4 0

3 years ago

Y = -3x – 2<br> 6x + 2y = -4

sdas [7]

Answer:

y= -3x -2

Step-by-step explanation:

3 0

3 years ago

After driving 378 miles, they have used 14 gallons of gas. They have 243 miles left to drive on the trip. How much gas will they

dsp73

Answer:

9 gallon of gas

Step-by-step explanation:

When distance covered is 378 miles, they have used 14 gallons of gas

We need to find how much gas will they need to finish the trip if 243 miles left to drive on the trip.

378 miles = 14 gallons of gas

For 1 mile,

1 gallon of gas is used for $\dfrac{14}{378}\ \text{gallon of gas is used}$

For 243 miles,

$= \dfrac{14}{378}\times 243\ \text{miles}\\\\=9\ \text{gallon of gas is used}$

Hence, for 243 miles 9 gallon of gas is used.

6 0

3 years ago

Tara bought 30 books at a yard sale she now has 220 books which equation can be solved to find b,the number of books Tara had be

OverLord2011 [107]

Answer:

Step-by-step explanation:

yes

6 0

3 years ago