If the axis of symmetry is x=-1, the vertex will have x-coordinate -1.
The point (0, 5) cannot be the vertex. The friend is not correct.
_____
If the point (1, 5) is on the graph so is the image of that point when it is reflected across the axis of symmetry. That image point is (-3, 5). A parabola that goes through points (1, 5) and (-3, 5) will not go through point (0, 5).
Answer:
a = 4 cm
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + 3² = 5²
a² + 9 = 25 ( subtract 9 from both sides )
a² = 16 ( take the square root of both sides )
a = 
= 4
1. Spatial perspective<span> is to study something in terms of location, distance, and direction. </span>Ecological perspective<span> is to study something in terms of environment and social interaction.
2.</span><span><span>The geosphere consists of the core, mantle and crust of the Earth.
</span><span>The atmosphere contains all of the Earth’s air and is divided into troposphere, stratosphere, mesosphere, thermosphere and ionosphere.
</span><span>The hydrosphere contains all of the solid, liquid and gaseous water on Earth, extending from the depths of the sea to the upper reaches of the troposphere where water is found. Ninety-seven percent of the hydrosphere is found in salty oceans, and the remainder is found as vapor or droplets in the atmosphere and as liquid in ground water, lakes, rivers, glaciers and snowfields.
</span><span>The biosphere is the collection of all Earth’s life forms, distributed in major life zones known as biomes: tundra, boreal forest, temperate deciduous forest, temperate grassland, desert, savannah, tropical rainforest, chaparral, freshwater, and marine.
3. jobs being taken by immigrants, over population, </span></span><span>The problem with multiculturalism is that you can't have more than one rule.
4.</span><span>Whoever controls the economy controls the government. </span>
<span>Examples: </span>
<span>the Bank of England controlled the British Empire </span>
<span>the US Federal Reserve (along with its private shareholders on Wall St and in Europe) currently controls the US political system </span>
<span>The IMF uses similar tactics to take over sovereign nations in Africa and South America </span>
<span>Global bankers run almost everything. For evidence, simply look around you.</span>
