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3 years ago

I need help with this problem!! Problem 21 show steps please

Mathematics

2 answers:

denis23 [38]3 years ago

7 0

Answer: (0, 3)

Step-by-step explanation:

The y-intercept is where the line intercepts (crosses) the y-axis (up/down axis).

The line crosses the y-axis at 3. When x = 0, y = 3

Gekata [30.6K]3 years ago

5 0

The y intercept is 3

You can also say that the y intercept is at (0,3) which is a more detailed answer. However saying "y intercept is 3" is sufficient enough because the x coordinate of the y intercept is always x = 0.

The y intercept is the location where the graph crosses or touches the y axis. This is at the halfway point between the 2 and 4, so (2+4)/2 = 6/2 = 3

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Hi can someone help me with this

Ad libitum [116K]

Answer:

25 units

Step-by-step explanation:

Applying Pythagoras' Theorem,

(BD)^2= (CD)^2 + (BC)^2

(BC)^2= 65^2 - 60^2

(BC)^2= 625

BC= √625= 25

5 0

3 years ago

Which algebraic expression is equivalent to 7(3x + 12) + 12x - 16

Sphinxa [80]

Answer:

fhcchjgcdhj cell

uyyjfgwfyrrfascfavczffbczxvvsfcf

5 0

3 years ago

How do I choose a method to find the product

Mrrafil [7]

What do you mean?
It's ok.
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3 X 5 = 15.

7 0

3 years ago

Can i get help please i don't know this

scoundrel [369]

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3 0

3 years ago

-x^2+4x-8 axis of symmerty

V125BC [204]

Answer:

$\boxed {\boxed {\sf x=2}}$

Step-by-step explanation:

The axis of symmetry can be calculated using the formula:

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

First we must determine a and b from the quadratic: $-x^2+4x-8$ . This is in standard form, with the highest power first in descending order.

Standard form is also: $ax^2+bx+c$

If we compare this to the quadratic given, we can conclude that:

$a= -1 \\b= 4 \\c= -8$

Substitute the values for a and b into the formula.

$x= \frac{-(4)}{2(-1)}$

Multiply in the denominator.

$x=\frac {-4}{-2}$

Divide.

$x=2$

This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.

8 0

3 years ago