Answer:
what u need help wt?
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
2 points have the same "x"
Answer:
x=7
Step-by-step explanation:
4x+12=40
-12
4x=28/4
Answer:
2cents
Step-by-step explanation:
40/20=2
Answer:
y = 2x-1
Step-by-step explanation:
I'm guessing gradient of 2 means slope of 2
if line passes through (2,3) and has a slope of 2, we can use the slope intercept equation
slope-intercept (y=mx+b)
m is the slope and b is the y-intercept (which we are trying to find)
so far, we have a point and a slope so we can fill in x,y, and m
(3) = (2)(2) + b
3 = 4 + b
3-4 = 4-4 + b (to undo addition, you use subtraction so I minus 4 from each side)
-1 = b
we found b so we just take the (2,3) out of the equation substitute the x,y back into the equation
y = 2x - 1
