Answer:
Step-by-step explanation:
a) the points (0,60) and (6.0) are the intercept points for the graph of the car slowing down ( accelerating in the opposite direction than it's traveling)
we already know the slope of the line b/c that the rate at which it's slowing .. -10 =m which is the slope of the line .. down 10
use the point-slope formula y-y1 = m(x-x1) and plug in either given point for (x1,y1)
b) y -60 = -10(x-0)
y= -10x+60
thats the slope-intercept form of the equation
Positive+positive= positive
negative+negative=positive
-7+10= negative
4/6 + 2/6= positive
-9.5+4= negative
Step-by-step explanation:
Let the ages of son and daughter be 5x and 4x Then
By the question
The age of a man is equal to the sum of the ages of his son and daughter . So
5x + 4x = 9x
Now
it is given that
age of the man = 45
or 9x = 45
x = 45 / 9
x = 5
Finally
Age of son = 5x = 5 * 5 = 25
Age of daughter = 4x = 4 * 5 = 20
Hope it will help :)❤
Answer:
Step-by-step explanation:
b+3b-3b²-2a
(4)+3(4)-3(4)²-2(2)
4+12-48-4
-36
To investigate which of the choices satisfy the equation, substitute the values of the abscissas into the equation and solve for y. See if the value of y calculated is equal to the value of the ordinate of the point.
A. (7, -2) ; (2)(7) + 5y = 4 ; y = -2 EQUAL
B. (0, -1) ; (2)(0) + 5y = 4 ; y = 0.8 NOT EQUAL
C. (0, 1) ; <span>(2)(0) + 5y = 4 ; y = 0.8 NOT EQUAL
D. (3, -2) ; (2)(3) + 5y = 4 ; y = -0.4 NOT EQUAL
Thus, the answer is letter A. </span>
