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True or false given a linear equation in two variables x and y the x intercept is found by setting x equal to zero and solving for y?
Wiki User
∙ 15y ago
False.
To find the x-intercept, let y = 0 and solve for x.
To find the y-intercept, let x = 0 and solve for y.
Wiki User
∙ 15y ago
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What is usually the first step in solving a system of equation by substitution?
The first step is to solve one of the equations for one of the variables. This is then substituted into the other equation or equations.
How do you find the x and y intercept?
Slope and y-interceptIn the general equation of the line, y=mx+b, the slope is m and the y-intercept is b. You can find the y-intercept for a linear equation in any form by setting x to zero and solving for y. Similarly, you can find the x-intercept by setting y to zero and solving for x.In the above general equation, the x-intercept is -b/m.
What is the result of solving an equation?
It is the solution of the equation
What do you do when solving an equation?
5R=45
Finding an x and Y intercept with two points?
Given two points on a graph with coordinates of X1,Y1 and X2,Y2, the slope of a straight line through the two points can be calculated as m=(Y1-Y2)/(X1-X2) The equation for the line can then be written as Y=mX+k, where k is some constant number. Note that m will be positive for lines that slant up from left to right, and negative for lines that slant up from right to left. Once m is known, k can be found by substituting the values of X1 and Y1 into the equation and solving for k. When k is known, the value of the X axis intercept can be found by setting X to zero and solving the equation for Y. The Y axis intercept value can be found by setting Y to zero and solving for X. Example: Let x1,Y1=6,4 and X2,Y2=2,2 Solve for m: m=(4-2)/(6-2)=2/4=1/2 Solve for k: Y=mX+k, 4=(1/2)6+k, k=4-3=1 If X=0, Y=(1/2)0+1=1 this is the Y axis intercept point If Y=0, 0=(1/2)X+1, 1/2X=-1, X=-2, this the X axis intercept point
How do you calculate roots?
The roots of an equation in two variables is calculated by setting the dependent variable, y, equal to 0 and then solving the resulting equation for the independent variable, x. The procedure for solving the equation in x will depend on the nature of the equation.
What is s solving an equation?
An equation is a mathematical statement that may (or may not) be true, defined for some variables. Solving an equation is finding those values of the variables for which the equation or statement is true.
How do you graph a linear equation slope intercept?
You can graph a linear equation slope intercept by solving the equation and plugging in the numbers : y=mx+b
What is the slope-intercept form of the equation -6x plus y equals 9?
Solving the equation for "y" gives you the slope-intercept form.
What is the definition of solving a rational equation?
to find the unknown variables
How are the rules for solving inequalities similar to those for solving equations?
Solving inequalities and equations are the same because both have variables in the equation.
What do you call finding the value of the variables that make equations true?
Solving the equation.
How do you solve a equation using unknown variables?
You don't use unknown variables to solve an equation. The purpose of solving an equation is to find the value of the variable so that it's no longer unknown.
What is the x intercept for the equation y equals -2x-4?
2
What is solving equations about?
It is about finding a value of the variable (or variables) that make the equation a true statement.
What are the variables in this equation 3ab plus c over 2?
The variables of this equation are your letters: a, b, and c. Variables merely stand in an equation to represent values that we don't know. "Solving" an equation is the process by which we uncover those values. In this particular case, since there are three variables, we cannot discover their values unless we have two other equivalent equations (a system of equations).
What is it called when finding the value of an expression by replacing the variables with numerals?
It is called solving the equation. * * * * * I would suggest that the answer is "evaluating it".
