Answer:
5,
Step-by-step explanation:
7 3/4 = 31/4
1 1/3 = 4/3
(31/4)/(4/3) = (31/4)(3/4) = 93/16 = 5 13/16
Y = -3/8x - 7....add 3/8x from both sides
3/8x + y = -7 ...multiply both sides by 8
3x + 8y = - 56 <==
Answer:
y=3x+9
Explanation:
To answer this question, we first have to understand a few key concepts.
1) The equation given (y=3x+9) is written in slope-intercept form, which is y=mx+b.
Heres what the variables mean:
Y=the coordinate
M=the slope
X=the x coordinate
B=the y-intercept (the point on the line that intercepts the y-axis)
2) Parallel lines have the same slope. Using the given equation, we now know that the slope of line s is 3. Therefore, the slope of line t is also 3 (because they are parallel).
So now, this is our equation so far:
y=3x+b
All we need to do now is find b, which we can do by plugging in the coordinate (-6,-9) as the x and y variables.
y=3x+b
-9=3(-6)+b
-9=-18+b
Add 18 to both sides
-9+18=-18+b+18
9=b
And when we plug 9 into y=3x+b, we get:
y=3x+9
(And yes, they are pretty much the same line)
I hope this helps! Please comment if you have any questions.
The answer is D.) Neither ordered pair is a solution.
The reason being:
If we look at the ordered pair (3,-8) and plug it into the equation like so:
3(3)-(-8)4=11
9-32=11
-23=11
FALSE
Now let's look at the ordered pair (4,4):
3(4)-4(4)=11
12-16=11
-4=11
FALSE
We see that neither ordered pair works, so the answer is D.) neither is a solution.
Hope this helped :)
