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3 years ago

What is the equation of the line with an x-intercept of -2 and a y-intercept of 1?

Mathematics

1 answer:

vaieri [72.5K]3 years ago

5 0

Answer:

the desired line is y = (1/2)x + 1

Step-by-step explanation:

Write these two points as (0, 1) and (-2, 0).

Now, as we go from (-2, 0) to (0, 1), x increases by 2 and y increases by 1. Thus, the slope, m, of the desired line is m = rise / run = 1 / 2.

Then the desired line is y = (1/2)x + 1 (since b is already given as (0, 1) )

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Solve the equation 58 - 10x ≤ 20 + 9x

drek231 [11]

Answer:

x≥2

Step-by-step explanation:

First, write out the equation as you have it:

$58-10x\leq20+9x$

Then, add $10x$ to both sides:

$58-10x+10x\leq20+9x+10x\\58\leq20+19x$

Next, subtract $20$ from both sides:

$58-20\leq20-20+19x\\38\leq19x$

Finally, divide both sides by $19$ :

$\frac{38}{19}\leq\frac{19x}{19}\\2\leq x$

$x\geq 2$

Therefore: the answer to this inequality/equation is: x≥2

6 0

3 years ago

This year, gasoline costs $4 per gallon. This is a 125% increase over the cost 3 years ago. What expression can be used to deter

pochemuha

The equation would be, 4/125%.

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3 years ago

How can you find discount and markup

melamori03 [73]

By using different math operations

5 0

3 years ago

in 2005, musicmart sold 12,000 cds. in 2010, they sold 14,550 cds. what is the rate of change in the number of cds sold?

inn [45]

2010-2005= 5 years. 14550-12000=2550
2550/5 = ans = 510 cds/year

8 0

1 year ago

. An average car uses 1 ounces of

Inessa [10]

ANSWER:

2 ounces.

EXPLANATION:

it uses 1 once of gasoline every time it is on not driving and it is at a traffic light for 2 minutes then 1 + 1 = 2.

1 ounce + 1 ounce = 2 ounces of gasoline it uses.

3 0

1 year ago