MATHEMATICS HIGH SCHOOL

What does the line y=3x-7 look like?

Answers

Answer 1
Answer: Here you go. just put the equation into a table
Answer 2
Answer:

Step-by-step explanation:

The given line equation is,

y=3x-7

The general slope intercept form of straight line is,

y=mx+c

where,

m = slope,

c = y intercept.

Comparing this with the given equation, we get

slope = 3, y intercept = -7

As slope is positive, the function f(x) increases as we increase x and vise versa.

y intercept is the point where the graph intersects the y axis, so the line intersects the y axis at y= -7.

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If you multiply an inequality by a positive number _____.switch the inequality sign
keep the inequality sign the same

Answers

Answer: If you multiply an inequality by a positive number keep the inequality sign the same

Explanation:  There are certain rules that should be kept in mind while solving the inequality:

1. When a number is added or subtracted from each side of an inequality the direction of the inequality does not change  

2. When each side of an inequality is multiplied or divided by a positive number the direction of the inequality does not change

3. When each side of an inequality is multiplied or divided by a negative number the direction of the inequality does change
Keep the inequality sign the same

The diagram shows a triangle.The sizes of the angles, in degrees, arex 30Work out the value ofx.Diagram NOTaccurately drawn

Answers

X=25 degrees

2x+3x+x+30 = 180
6x+30 = 180
180 - 30 = 150
6x = 150
150/6 = 25
X = 25

How many feet in a rod?



2.5

4.5

8.5

16.5

Answers

1 rod is equal to 16.5 feet

Describe how to determine the solution of a system of two linear equations by graphing.WEEELPP

Answers

Using the graphing you graph the two equations and then find the point where the two lines of the equation meet.

Hope this helps :)
1). Draw the graph of one equation.

2). On the same graph, draw the graph of the other equation.

3). If the two lines cross, the x and y at the point where they cross are the solution to the system of two equations.

4). If the two lines don't cross, then the system has no solution.

5). If they are the same line, then the two equations are the same equation, and every point on the line is a solution to it.

Solve x2 - 7x = -13.

I need the answer to be a fraction with +- answer

Answers

the answer is x=7+-iāˆš3/2

Answer:

x= +13/5

Step-by-step explanation:

2-7 is -5 so it simplifies to -5x=-13

Then you divide both sides by -5 to get -5x/-5=-13/-5

The negatives cancel off and your left with x=13/5

The lenght of a rectangular classroom floor is 19 feel less than twice the width which expression repersents the area of the classroom floor

Answers

w*(2w-19)=A. Just make the width a variable and write out the relationship it has with the length
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