-3
It is 10.
7
Well, darling, 2x plus 5 is just an algebraic expression that represents the sum of 2 times a variable x and 5. So, if you want to find the value of that expression, you need to know the value of x. Math can be a real hoot sometimes, can't it?
-4 (-9 +5 = -4)
The expression "5 more than x" represents the quantity obtained by adding 5 to the value of x. This can be written mathematically as ( x + 5 ). In this context, it emphasizes that 5 is being added to whatever value x holds, indicating a relationship of increase relative to x.
x + 5
The vertex of this parabola is at 5 5 When the x-value is 6 the y-value is -1. The coefficient of the squared expression in the parabola's equation is -6.
8
5
To find the value of the expression 4x - 2y + xy when x = -1 and y = 5, we first substitute the values of x and y into the expression. This gives us 4(-1) - 2(5) + (-1)(5). Simplifying this further, we get -4 - 10 - 5, which equals -19. Therefore, the value of the expression is -19 when x = -1 and y = 5.
The constant. For instance, if you had 2x +5, +5 would be your constant, because no matter what number you substitute in for x, the last term of the expression will be +5. It is independent of the x and y value.
Say you have an algebraic expression y = 3x +4 For a given value of x = 5 substitute that number in place of x in the expression, so in this case y = 3(5) + 4 = 19