Y=3x+5 and y=3x-10

1 answer:

7 0

Okay..,
actually there is some mistake in the problem..!!

as only the content term is changed for both the equation while X and Y are same..

please provide correct question

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A student spends no more than 2 hours on his math and English homework. If math takes about twice as long as long as english. Ho

GarryVolchara [31]

E - English homework, M - Math homework;
M + E ≤ 2 hours
M = 2 E
2 E + E ≤ 2 hours
3 E ≤ 2 hours = 120 minutes
E ≤ 120 : 3
E ≤ 40 minutes
Answer:
The student will be able to finish his English homework in less or equal to 40 minutes.

7 0

4 years ago

First to answer correctly gets brainleist! please i need this asap :)

mina [271]

Answer:

slope = -3; y-intercept = 1/2

Step-by-step explanation:

A way to solve this problem would be to write equations based off of the answer choices on the right, plug the x and y values from the chart into those equations, and see if they are true.

Let's look at the third option choice. Given that the slope = -3 and the y-intercept is 1/2, we can write an equation using the slope-intercept format, y= mx + b, where m is the slope and b is the y-intercept. So, the equation for that would be y= -3x + 1/2.

Let's try plugging in some x and y values and testing if they are true. Let's take the point $(-1, 3\frac{1}{2} )$ from the chart for example:

$(3\frac{1}{2}) = -3(-1) + \frac{1}{2} \\(3\frac{1}{2}) = 3 + \frac{1}{2} \\3\frac{1}{2}= 3\frac{1}{2}$

So, since $3\frac{1}{2}$ does equal to $3\frac{1}{2}$ , it is true, making that the correct answer. You could plug in any other point from the chart to check, too - it's good to check multiple, but for the sake of brevity, I just put that as one example.