Slope of tangent line = dy/dx = 2x+3
k is y_intercept of tangent line
2x+3 = -1
x = -2
y = (-2)^2+3(-2)+1 = -1
tangent line passes through point (-2,-1)
k = x+y
k = -2 -1
k = -3
50.........................
Answer:
12
Step-by-step explanation:
84-54=30
30/2.5=12
X varies directly as y
x = ky
3 = 2k
k =

when x =9
9 =

y

= y
∴y = 6
please mark as brainliest
Answer:
9+x<12
Step-by-step explanation:
add 9 to an unknown number.
9+x
use the < less than symbol (instead of an equal sign) and write 12.