Answer:12 m
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Given
x² + 3x + 2 = 0
To factor the quadratic
Consider the factors of the constant term (+ 2) which sum to give the coefficient of the x- term (+ 3)
The factors are 2 and 1, since
2 × 1 = 2 and 2 + 1 = 3, thus
(x + 2)(x + 1) = 0
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
x + 1 = 0 ⇒ x = - 1
For a slope-intercept form, you only have the data of the slope and the y-intercept. On the other hand, for a point-slope form, you have data on the slope and one point. It is sometimes useful to make use of the latter <span>because in this form, you can graph the equation using only one point. You can also see a point included on the line.</span>