Answer:
(x,y) = (-3,-2)
Step-by-step explanation: Please brainliest!
cos(3x) = cos(2x+x)
= cos(2x) cos (x) -sin(2x)sin(x)








Answer:
y = 9 + 19x
Step-by-step explanation:
To find the equation matching a set of data, you simply try a few values for x and see if by solving that side of the equation you get the value of y. If you do, you found your equation.
You have a big advantage here... since you have the value of y when x = 0.
When x = 0, y = 9, that's a very important data to have to simplify your research.
Let's try the value of 0 for x in each of the given equations:
y = 18 + 10 (0) = 18 --- NO
y = 9 + 19 (0) = 9 --- YES! We can confirm with another value of x:
y = 9 + 19 (1) = 28 --- YES! Confirmed!
y = 9 + 19x is your answer!
Answer:
your y-intercept is 0 and slope is 4 so any line with zero slope it will be horizontal
Answer:
2+x
Step-by-step explanation:
2(1-x)=2-2x
2-2x+3x=2+x