WebWell, this is going to be equal to positive 20 over 10, which is equal to 2. And so to find the y value of the vertex, we just substitute back into the equation. The y value is going to be 5 times 2 squared minus 20 times 2 plus 15, which is equal to let's see. This is 5 times 4, which is 20, minus 40, which is negative 20, plus 15 is negative 5. WebSolution: Divide each value of y y by the corresponding value of x x. The quotient of y y and x x is always k = - \,0.25 k = −0.25. That means y y varies directly with x x. Here is the equation that represents its direct variation. Here is the graph. Having a negative value of k k implies that the line has a negative slope.
Find dy/dx y=7x-5 Mathway
WebIt is the point where the line crosses the x axis of the cartesian coordinates. We can write an equation of the line that passes through the points y=0 as follows: Using the equation: y = 3x – 6, put y=0. To find the x-intercept. 0 = 3x – 6. 3x = 6. The x-intercept is 2 of the slope-intercept form of line equation is: WebAug 19, 2016 · K(-7; y) → (14; –5) (14; -5) = (-7k; ky) therefore -7k = 14 and ky = -5-7k = 14 ⇒ k = -2 subtitute to ky = -5-2y = -5 divide both sides by (-2) y = 2.5 Answer: b. 2.5 curly spinning
Solve For y Calculator - Online Solve For y Calculator - Cuemath
WebFeb 11, 2024 · Put 2 x + y =5 into the slope intercept form y = 5 - 2x. The slope is -2. If the lines are parallel, the slopes must be equal. Put the equation x – k y = 7 into the slope intercept form y = x/k -7/k. For the slopes to be equal, 1/k = -2 or k = -1/2, so the equation becomes y = -2x +14. Upvote • 0 Downvote. WebGraph y=-7. Step 1. Use the slope-intercept form to find the slope and y-intercept. Tap for more steps... Step 1.1. The slope-intercept form is , where is the slope and is the y-intercept. Step 1.2. Find the values of and using the form . Step 1.3. The slope of the line is the value of , and the y-intercept is the value of . Slope: y-intercept ... WebJun 7, 2024 · Determine the value of y. DO,k(–7, y) → (14, –5) A.1.25 B.2.5 C.5 D.10 please help i need help! See answers Advertisement Advertisement BillyThaKid … curly spider plant light