Answer:
Draw a straight line that goes through the point (0,4) and (20,0)
Step-by-step explanation:
The y-intercept is equal to 4, since the function is already in y=mx+b form, where b is the y-intercept.
To find the x-intercept, we substitute 0 into y or in this case the f(x).
0 = -1/5 (x) + 4
1/5 x = 4
x = 20
The x-intercept is 20.
The values of (x,y,z) are (3,-1,-2) , if the given are equations ,
and
.
Step-by-step explanation:
The given is,
.......................................(1)
......................................(2)
.........................................(3)
Step:1
Equation (2) is multiplied by -1 ( Eqn(2) × -1 )
.............................(4)
Subtract the equation (1) and (4)
( - )
......................(5)
Step:2
Equation (2) is multiplied by -2 ( Eqn(2) × -2)
........................(6)
Subtract equation (6) and (3),
( - )
z = -2
From the equation (5),
x = -1
From equation (1),
Substitute x and z values,
y = 1
Step:3
Check for solution,
Substitute x,y and z values,
-5 = -5
Result:
The values of (x,y,z) are (3,-1,-2) , if the given are equations ,
and
.
9514 1404 393
Answer:
D. Henry's started farther, went faster
Step-by-step explanation:
Henry's balloon traveled 18 additional miles (from 30 to 48) in 2 hours, so had a speed of 18mi/(2h) = 9 mi/h. The equation for his position could be ...
y = 9x +30 . . . . . 9 is the rate of change; 30 is the initial value
__
Comparing this to Tasha's position function, we see her balloon started 20 miles from town and traveled 8 miles per hour.
__
Henry started farther from town and traveled faster.
