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3 years ago

How so you graph linear equations?

1 answer:

6 0

If it is in slope intercept form (y=mx+b), b is the y-intercept, so the point on the line that is on the y axis, and m will be the slope, or slant, of the line. Slope is rise over run, so if for example your slope is 3/4, graph a point 3 increments up and 4 to the right of your y intercept and then draw a line through those 2 points. for a negative slope just graph the second point down and to the right.
if your equation is not in slope intercept form, just isolate the y
hope this helped!

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After John worked at a job for 10 years, his salary doubled. If he started at $x, his salary after 10 years is $_____.

Digiron [165]

If he started at $x, and we need to double it, we take X and multiply it by 2 creating $2X

5 0

4 years ago

Hong purchased n notebooks. They were 5 dollars each. Write an equation to represent the total cost c that Hong paid.

klio [65]

Answer:

5n=c

Step-by-step explanation:

the equation 5n=c can represent the total cost Hong would have paid for the notebooks because given that each notebook costs $5, you would multiply 5 by the number of notebooks (n) that Hong would be purchasing, which would bring you to the cost (c) of the notebooks all together

sorry for the delay. hope this helps

4 0

3 years ago

What is the product? (6r-1)(-8r-3) -4872-10r +3 - 48r2-10r-3 -48P?+ 3 -48r2-3

Korolek [52]

Answer:

-48r²-10r+3

Step-by-step explanation:

The answer would not be a negative 3 because -3×-1=3

Hope this helped!

6 0

3 years ago

Read 2 more answers

Suppose a car dealer receives a profit of $500 for each mid-sized car m sold and $750 for each sport-utility vehicle s sold. The

valkas [14]

Answer:

$\boxed{\text{Four}}$

Step-by-step explanation:

500m = profit on mid-sized cars

750s = profit on SUVs

500m + 750s = total profit

You have two conditions:

(1) 500m + 750s ≥ 3500

(2) m ≥ 2s

Let s = 2

Check condition (1)

500m + 750 × 2 ≥ 3500

500m + 1500 ≥ 3500

500m ≥ 2000

m ≥ 4

Check condition (2)

(2) m ≥ 2 × 2

m ≥ 4

$\text{The dealer must sell }\boxed{\textbf{four}}\text{ mid-sized vehicles per month}}$

Check:

500 × 4 + 750 × 2 ≥ 3500 4 ≥ 2 × 2

2000 + 1500 ≥ 3500 4 ≥ 4

3500 ≥ 3500

OK.

3 0

3 years ago

Read 2 more answers

Identify which lines are parallel. y=2;y=x+2;y=2x-1;y=2x+1

Ne4ueva [31]

Answer:

y=2

Step-by-step explanation:

A parallel line are lines that never intersect.

-They are generally formed when a line when lines are perfectly horizontal to the x axis or the vertical to the y-axis.

=>y=2 is the only parallel line .

=>y=x+2 is not parallel as the (x+2) is not a constant

=>y=2x-1 is not parallel as the (2x-1) is not a constant

=>y=2x+1 is not parallel as the (2x+1) is not a constant

7 0

3 years ago