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2 years ago

Determine f(-1) if the graph of f(x) is given below.

Mathematics

1 answer:

-BARSIC- [3]2 years ago

8 0

Answer:

$f(-1) = -2$

Step-by-step explanation:

Given

The attached graph

Required

$f(-1)$

This is the point where

$x = -1$

On the attached graph;

$f(x) = -2$ when $x = -1$

Hence:

$f(-1) = -2$

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2 years ago

Read 2 more answers

Which quadratic function represents the widest parabola? A) f(x) = 5x2 B) f(x) = 1 5 x2 C) f(x) = 2 3 x2 D) f(x) = 3 2 x2

svetlana [45]

Answer:

Step-by-step explanation:

if you use a graphing calculator you we see that the smaller the leading coeffient the wider the parabola.

or use a table and plug in values for y for each x

y = x² 5x² 15x²

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x = 2 4 20 60

y is larger for a larger ax² a coeffient

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4 0

3 years ago

A circle has a center of (5,-5) and goes through (6,-2). What is the radius?

azamat

Let O(5, -5) be the center of the circle, and P(6, -2) be a point on this circle.

The distance between points O and P, that is |OP|, is the radius of this circle,

We use the distance between 2 points formula:

|OP|= $\sqrt{ (x_2-x_1)^{2} + (y_2-y_1)^{2} }= \sqrt{ (6-5)^{2} + (-2-(-5))^{2} }$
$= \sqrt{ 1^{2}+ (-2+5)^{2}} = \sqrt{1+9}= \sqrt{10}$ (units)

Answer: $\sqrt{10}$ units

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3 years ago