Answer to the slope and y-intercepts at the top:
#2: slope = -3 & y-intercept = (0,5)
#3: slope = 1 & y-intercept = (0, 4)
#4: slope = 5/6 & y-intercept = (0, -3)
#5: slope = -3 & y-intercept = (0, -7)
#6: slope = 1/5 & y-intercept = (0, 2)
Answers for the equations at bottom:
#5: y = 4/9x + 7
#6: y = -x - 6
#7: y = 2x + 5
#8: y = -4x + 7
Hope this helps! :)
For
y=ax²+bx+c
the x value of the axis of symmetry is -b/(2a)
so test them
A., -b/(2a)=-(-8)/(2*-2)=8/-4=-2, yep
B. -b/(2a)=-2/(2*1/2)=-2/1=-2, yep
C. -b/(2a)=-(-16)/(2*4)=16/8=2, nope, need -2
D. -b/(2a)=-12/(2*3)=-12/6=-2, yep
answer is C
Y-3=-3y-43
4y-3=-43
4y=-46
y=-11.5
Answer: 12
Step-by-step explanation:
42
42
42
11.16 times 3.27 is 36.4932
