The first one is a reflection over the x-axis :)
Answer:
x = 45.6
Explanation:
-10(x + 21) = -15x + 18
-10x - 210 = -15x + 18
-210 = -5x + 18
-228 = -5x
x = 45.6
(I’m not sure if this is what you’re looking for, but I hope it helped a bit)
Answer:
D
Step-by-step explanation:
(2x + 2) -
(3x - 1) = 15
multiply through by 4 ( the LCM of 2 and 4 ) to clear the fractions
2(2x + 2) - (3x - 1) = 60 ← distribute parenthesis and simplify left side
4x + 4 - 3x + 1 = 60
x + 5 = 60 ( subtract 5 from both sides )
x = 55
Slope = (y2-y1)/(x2 - x1)
Slope = (9 - 6)/(-3- (-9)) = 3/6 = 1/2
Answer: 1/2