PLEASE HELP ME I NEED IT QUICK
1 answer:
Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (0, - 20) and (x₂, y₂ ) = (4, 10) ← 2 points on the line
m = =
=
Note the line crosses the vertical axis at (0, - 20) ⇒ c = - 20, thus
f(x) = x - 20 → A
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Answer:
Option B is correct.
the value of discriminant is, -7
Step-by-step explanation:
Given the equation:
To find the value of discriminant
A quadratic equation is of the form where a, b and c are coefficient of the equation.
On comparing with given equation we have;
a = 1 , b = 1 and c = 2
then;
Discriminant =
Therefore, the value of discriminant is, -7