14) 5x7 - 12x +7 = 0
Solve by factoring
Answer:
see explanation
Step-by-step explanation:
(13)
v² - 11v + 18 = 0 ← in standard form
(v - 2)(v - 9) = 0 ← in factored form
Equate each factor to zero and solve for v
v - 2 = 0 ⇒ v = 2
v - 9 = 0 ⇒ v = 9
solutions are v = 2, v = 9
(14)
5x² - 12x + 7 = 0
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 5 × 7 = 35 and sum = - 12
The factors are - 5 and - 7
Use these factors to split the x- term
5x² - 5x - 7x + 7 = 0 ( factor the first/second and third/fourth terms )
5x(x - 1) - 7(x - 1) = 0 ← factor out (x - 1) from each term
(x - 1)(5x - 7) = 0
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
5x - 7 = 0 ⇒ 5x = 7 ⇒ x =
solutions are x = 1, x =
Answer:
Step-by-step explanation:
To find the slope of a line passing through two points, we can use the formula:
slope = (change in y) / (change in x)
Let's apply this formula to the given points (2, 7) and (-1, 4):
1. Determine the change in y:
change in y = 4 - 7 = -3
2. Determine the change in x:
change in x = -1 - 2 = -3
3. Calculate the slope using the formula:
slope = (-3) / (-3) = 1
Therefore, the slope of the line passing through the points (2, 7) and (-1, 4) is 1.
In summary, the slope of the line passing through the given points is 1.
What is the range?
5
1
3
none of these