It is x^2-2x-9 since u just subtract both equations
Answer:
(1, 7 )
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Then the equations of the 2 lines are
y = 4x + 3 → (1)
y = 6x + 1 → (2)
Substitute y = 6x + 1 into (1)
6x + 1 = 4x + 3 ( subtract 4x from both sides )
2x + 1 = 3 ( subtract 1 from both sides )
2x = 2 ( divide both sides by 2 )
x = 1
Substitute x = 1 into either of the 2 equations for corresponding value of y
Substituting into (1)
y = 4(1) + 3 = 4 + 3 = 7
Point of intersection = (1, 7 )
Answer:
b = 22 m
Step-by-step explanation:
The formula for calculating the area (A) of a triangle is
A = bh
multiply both sides by 2 to eliminate the fraction
2A = bh ( divide both sides by h )
b = , hence
b = = = 22 m
Answer:
- 22.5
Step-by-step explanation:
Substitute x = 3 into f(x) and x = 16 into h(x) , then
g(3) - h(16)
= × - 3(3)² - (2 + 1)
= × - 3(9) - (2(4) + 1)
= × - 27 - (8 + 1)
= - 13.5 - 9
= - 22.5