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3 years ago

The axis of symmetry and vertex coordinates?

Mathematics

1 answer:

frutty [35]3 years ago

5 0

I have attached the graph. Your axis is x=-4 and the vertex is (-4,-30)

Hope that helps

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What is the value of a if (2a +3) - (4a-8)= 7

mars1129 [50]

( 2a + 3 ) - ( 4a - 8 ) = 7
2a + 3 - 4a + 8 = 7
-2a + 11 = 7
-2a = -4
a = -4 / -2
a = 2

7 0

3 years ago

Jolene is making a line graph showing that the cost of grain is proportional to the number of pounds purchased. Jolene will plot

Gelneren [198K]

Answer:

a. $(1,0.25)$

b. $y = 0.25x$

Step-by-step explanation:

Given

The data in the table

Solving (a): The coordinate that represents the unit rate

The unit rate is when its 1 pound

This is so because the unit rate is dollars per pounds.

Hence, the coordinate is $(1,0.25)$

Solving (b): Equation of the graph

First, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where:

$(x_1,y_1) = (1,0.25)$

$(x_2,y_2) = (4,1.00)$

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{1.00 - 0.25}{4 - 1}$

$m = \frac{0.75}{3}$

$m = 0.25$

The equation is then calculated as thus:

$y - y_1 = m(x - x_1)$

This gives:

$y - 0.25 = 0.25(x - 1)$

$y - 0.25 = 0.25x - 0.25$

Make y the subject

$y = 0.25x$

Hence, the equation of the graph is: $y = 0.25x$

6 0

3 years ago

Duke has a spinner that is divided into six equal-sized sections. Each section is a different color. He spun the spinner multipl

N76 [4]

Answer:

C. 1/6

Step-by-step explanation:

The experimental probability is the probability that is obtained by dividing the number of times the required outcome has occurred by the total number of trials.

In the experiment given the color red is one of the six possible outcomes and the next time the experiment is performed the number of trials would be 1

so the experimental probability would be 1/6

If the previous number of trials were given then the probability would have been different.

6 0

3 years ago

Read 2 more answers

11/(x+9)=5 I am struggling with this question. Is there a solution?

maks197457 [2]

Answer:

x=-6.8

$\\ step \: by \: step \: explanation \\ \frac{11}{(x + 9)} = 5 \\ 11 = 5(x + 9) \\ 11 = 5x + 45 \\ 5x = 11 - 45 \\ 5x = - 34 \\ x = \frac{ - 34}{5} = - 6.8$

8 0

2 years ago

Two fifths of the cross-country team arrived at the weight room at 7 a.m. Ten minutes later, 3/10 of the team showed up. The res

frosja888 [35]

Answer:

7/10 of the team showed up

Step-by-step explanation:

5 0

3 years ago