Answer:
Step-by-step explanation:
x + 6y = 9
-x + 2y = -15
-------------------add
8y = - 6 <=== u see that the x terms cancel each other out
Answer:
Kevin was eleven years old.
Step-by-step explanation:
7+4=11, since the question says Matthew is younger by four years.
Answer:
The graph in the attached figure
Step-by-step explanation:
we know that
The equation of a line in point slope form is

we have


substitute

The easiest way to graph a line is to calculate the intercepts
The<u><em> x-intercept </em></u>is the value of x when the value of y is equal to zero
For y=0



The x-intercept is the point (-6,0)
The <u><em>y-intercept</em></u> is the value of y when the value of x is equal to zero
For x=0




The y-intercept is the point (0,1.5)
Plot the intercepts and join the points to graph the line
(-6,0) and (0,1.5)
The graph in the attached figure
1 byte9 Cube root of b^27 = b^27/3 = b^9.