Our brains judge the speed of objects passing by us through the time taken for them to cross our field of view. Those taking a long time could either be nearby and travelling slowly or faster and further away. And in the case of planes, our brains know that the second interpretation is the right one.
Answer:
you will need a graph
Step-by-step explanation:
so you will need to find -4 on the x axis and find 4 on the y axis then join the points and the same with -9 on x axis and 6 on y axis then the same on all of them
I don't think its possible to do this... you have to have 2 equations
Step-by-step explanation:
The graph of a quadratic function is a U-shaped curve called a parabola. One important feature of the graph is that it has an extreme point, called the vertex. If the parabola opens up, the vertex represents the lowest point on the graph, or the minimum value of the quadratic function. If the parabola opens down, the vertex represents the highest point on the graph, or the maximum value. In either case, the vertex is a turning point on the graph. The graph is also symmetric with a vertical line drawn through the vertex, called the axis of symmetry.
Graph of a parabola showing where the x and y intercepts, vertex, and axis of symmetry are.
The
y
-intercept is the point at which the parabola crosses the
y
-axis. The
x
-intercepts are the points at which the parabola crosses the
x
-axis. If they exist, the
x
-intercepts represent the zeros, or roots, of the quadratic function, the values of
x
at which
y
=
0
.
Answer:
x = - 8
Step-by-step explanation:
Here we are given a linear single variable equation of x and we have to solve it.
Now, the equation is 4(2x + 1) = 6x - 12
⇒ 8x + 4 = 6x - 12 {By distributive property of multiplication}
⇒ 8x - 6x = - 12 - 4
{Separating the x terms to one side and the constant terms to the other side}
⇒ 2x = - 16
⇒ x = - 8 {Dividing both sides by 2} (Answer)
