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Ahat [919]
3 years ago
15

Select the function that matches the graph. y = 3x y = 3x2 + 1 y = 3x - 1 y = 3x + 1

Mathematics
2 answers:
Brut [27]3 years ago
7 0

Answer:

the first one goes through (0,0) ||||||| the second is an exponential function so it goes through (0,1) and in a u shape going up ||||||| The third goes through (0,-1) ||||||||| The fourth goes through (0,1)

Step-by-step explanation:

these are identifiein traits so you can find wich one the graph corresponds to since u never gave us a graph.

-BARSIC- [3]3 years ago
5 0

Answer:

The graph is missing, but we can draw and describe each option.

<h3>Choice 1</h3>

y=3x

This is a linear function which passes throuhg the origin of the coordinate system because it doesn't have the constant b which is the y-intercept of the line.

The first image attached shows this function.

<h3>Choice 2</h3>

y=3x^{2} +1

This is a quadratic function. Its graph belongs to a parabola, all quadratic functions are represented by a parabola. In this case, the parabola has a vertex at (0,1). The second image attached shows this function.

<h3>Choice 3</h3>

y=3x-1

This is also a linear function, which is parallel to the first function, because they have the same slope of 3. But this one has y-intercept at (0,-1). The third image attached shows this function.

<h3>Choice 4</h3>

y=3x+1

This is also a linear function parallel to function 1 and function 3. The fourth image attached shows its graph. In this case, the line has y-intercept at (0,1).

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Find the ratio in which the line joining the points (2, 4, 16) and (3, 5, -4) is divided by the plane 2x – 3y+ z+ 6 = 0. Also fi
Nastasia [14]

Answer:

Step-by-step explanation:

let the plane intersects the join of points in the ratio k:1

let (x,y,z) be the point of intersection.

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5 0
3 years ago
A pile of 42 coins worth $4.90, consisting of nickels and quarters. How many nickels are there?
Ymorist [56]

Answer:14

Step-by-step explanation:

A nickel is 5 cents (20% of dollar)

and a quarter is 25 cents (25% of dollar)

We have given a pile of 42 coins worth of $4.90

Let x be the no nickels and

y be the no of quarter

therefore

x+y=42    -----1

\frac{x}{4}+\frac{y}{20}=4.90 ---2

Solving \left ( 1\right )&\left ( 2\right ) we get

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