Graph the following equation using X- and y-intercepts.
x + y = -3

x-intercept: (-3,0)

y-intercept: (0,-3)

Step-by-step explanation:

Looking at the equation, we can see that it is already in standard form, or in a format. Whenever a line is put into standard form, the x-intercepts are represented by and the y-intercepts are represented by . So, let's calculate them by doing the following:

1) Find the x-intercept by using the formula. Substitute the number on the right side of the equation for and the coefficient for the x term for . So, in this case, and :

Therefore, the x-intercept is (-3,0).

2) Next, find the y-intercept by using the formula and substituting the right values. is still the number on the right side of the equation and is the coefficient of the y term. So, and .

Therefore, (0, -3) is the y-intercept.

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)