Answer:
It goes 7 mph.
Step-by-step explanation:
Answer:
The answer to your question is the letter D. (step 2)
Step-by-step explanation:
Data
P (7, 4) slope = 6
Process
1.- Write the equation of the line
y - y1 = m(x - x1)
x1 = 7 y1 = 4
2.- Substitution
y - 4 = 6(x - 7)
- Simplification
y - 4 = 6x - 42
- Solve for y
y = 6x - 42 + 4
y = 6x - 38 This is the equation in the point-slope form
3.- According to the choices the answer is letter D.
Answer:
1) The solve by graphing will the preferred choice when the equation is complex to be easily solved by the other means
Example;
y = x⁵ + 4·x⁴ + 3·x³ + 2·x² + x + 3
2) Solving by substitution is suitable where we have two or more variables in two or more (equal number) of equations
2x + 6y = 16
x + y = 6
We can substitute the value of x = 6 - y, into the first equation and solve from there
3) Solving an equation be Elimination, is suitable when there are two or more equations with coefficients of the form, 2·x + 6·y = 23 and x + y = 16
Multiplying the second equation by 2 and subtracting it from the first equation as follows
2·x + 6·y - 2×(x + y) = 23 - 2 × 16
2·x - 2·x + 6·y - 2·y = 23 - 32
0 + 4·y = -9
4) An example of a linear system that can be solved by all three methods is given as follows;
2·x + 6·y = 23
x + y = 16
Step-by-step explanation:
B= 5,3
c=4,-1
a=2,1
this is the answer to part c
The common denominator is
10 x 5 = 50
25 x 2 = 50
so the common denominator is 50
