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3 years ago

Sketch the graph of y= (x - 3)2 - 25, then select the graph that corresponds

Mathematics

1 answer:

kupik [55]3 years ago

5 0

Answer:

graph C

Step-by-step explanation:

because the vertex is h,k. h is -3 k is -25. C is the only graph with a vertex at that location.

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Andrew writes the algrebraic expression 2s + 2.97 to represent the cost of his lunch. He bought 2 sandwhiches and a large drink.

krok68 [10]

Answer:

Step-by-step explanation:

2s + 2.97, if he buys 2 sandwiches and a large drink then

2 represent the coefficients of s which is the number of sandwiches he bought

s represent a variable since it a function of the coefficient; s represent the price of sandwich

2.97 represent the price of large drink and also a constant since it has no letter added to

3 0

2 years ago

Which explains whether or not the function represents a direct variation?

s2008m [1.1K]

Answer:

The function represents a direct variation

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a linear direct variation the line passes through the origin and the constant of proportionality k is equal to the slope m

Let

$A(0,0)$ ------> the line passes through the origin

$B(2,10)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=10/2=5$

$C(4,20)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=20/4=5$

$D(6,30)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=30/6=5$

$E(8,40)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=40/8=5$

The value of k is equal in all the points of the table and the line passes through the origin

therefore

The function represents a direct variation

the equation of the direct variation is equal to

$f(x)=5x$

4 0

3 years ago

Read 2 more answers

tom jogged 3/10 mile, betsy jogged 5/10 mile, and sue jogged 2/10 mile. who jogged a longer distance than 4/10 mile?

Inga [223]

Betsey jogged the longer distance.

5 0

3 years ago

Write the equation 2x + 6x + y2 - 8y= 19 in standard form

wariber [46]

Y^2+8x-8y=19... I think?

3 0

3 years ago

Read 2 more answers

I need to make I am right so, which is more -9 8/9 or -10 8/9

VLD [36.1K]

-9 8/9 pretty sure hope this helps

4 0

3 years ago