Answer:
So you have the multiplication and substitution right. It's just the subtraction.
Step-by-step explanation:
Now, the equation was y = 4x - 2
In the first one x = -3
So it will be 4(-3) - 2
Note: Anytime you see a bracket it means multiplication.
4× -3 = -12 and
-12 - 2 = -14
This is because a negative number minus another number is always negative.
And when dealing with negative numbers you add them but you negate the answer.
For example;
The second one will be -8 - 2
And 8 + 2 = 10
But since the numbers are negative we just negate the 10 making it - 10.
I hope this helps
The "x" intercept is found when you plug in "0" for "y"
-6x + 3(0) = 18.9
-6x = 18.9 (Divide both sides by -6)
x = - 3.15
(-3.15, 0) is your x-intercept
Now plug in "0" for the x
-6(0) + 3y = 18.9
3y = 18.9 (Divide both sides by 3)
y = 6.3
(0, 6.3) is your y - intercept
Answer:
i did this on khan academy :)
Step-by-step explanation:
0.80 2/745
0.20 754/754
57 + b
this is how you would write the expression
Answer:
The exponent is negative because, as a positive exponent means to multiply, a negative exponent means to divide. For example, in your problem it should look something like this: 3X10^-3. This basically is saying the same thing as 3/10, 3 times. So, 3/10 is 0.3. 0.3/10 is 0.03. 0.03/10 is 0.003. I don't know if this makes sense but I hope it does!
Step-by-step explanation: