Answer:
there is no solutions.
Step-by-step explanation:
replace y in 2y=4x+6 with 2x+6
2(2x+6)=4x+6
mulitply the terms
4x+12=4x+6
subtract 4x from both sides or the equal sign.
the answer is 12=6 which is not equal to each other
there's not solutions.
Answer:
98 or 18
Step-by-step explanation:
Let's call the numbers 3x and 7x. We have two cases, either 42 is 3x or 42 is 7x. Looking at the first case, if 3x = 42, x = 14 which means the other number is 7 * 14 = 98. Looking at the second case, if 7x = 42, that means x = 6 so the other number is 3 * 6 = 18.
In order to get -140, one number has to be negative and one number has to be positive. And these two numbers when added together give you a -4, which means the greater of these numbers has to be negative.
Try guess and check strategy by listing possible factor combinations for -140 and see which one works!
Answer:
like 60 or something
Step-by-step explanation:
Parallel lines have the same slope, so since you want a line that is parallel to a line with slope -8, your line will also have slope -8.
The slope-intercept form of the equation of a line is
y = mx + b
where m is the slope, and b is the y-intercept.
You already know you have a slope of -8, so m = -8, and you have
y = -8x + b
Now you need to find the value of b.
Use the point you know and substitute it in for x and y, and solve for b.
y = -8x + b
Use x = -8, and y = 2.
2 = -8(-8) + b
2 = 64 + b
-62 = b
b = -62
Now replace b with -62.
y = -8x + b
y = -8x - 62
